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[DOC File]Overview:
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21. Write a system of two equations with two variables in which it would be easier to solve by substitution. Explain your reasoning. Then solve by both substitution and by graphing. Show your work and your graph. 22. Write a system of three equations with three variables in which there are infinitely many solutions.
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[DOC File]MAT1033 - Solving Systems of Equations Using the Addition ...
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6. Solve the system of equations from part 5 using the substitution method for last lesson. Check your answer using your calculator (Window: Xmin= -2.5, Xmax= 2.5, Ymin= -2.5 and Ymax=2.5) 4. Solve the following system using the Addition method. Multiply the appropriate equation by the appropriate factor to eliminate x and solve for y first.
solving systems of linear equations by substitution

[DOC File]1
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Recap: Review with students the steps to solving a system of equations by the substitution method. 1) Write one of the equations in terms of one of the variables. 2) Substitute that into the other equation in place of the variable solved for in Step 1. 3) Solve the equation.
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[DOC File]8-1 Solving Systems of Equations
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Dec 12, 2009 · Solve by the substitution method. What is the solution of the system? Select the correct choice solution or no solution. 6m + n = -30 m- 7n + 58?? Please correct second equation, where is = sign… Solve by the substitution method. What is the solution of the system? Select the correct choice solution or no solution. 8x + 7y = -3 -5x + y = 18
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Solve by Substitution Calculator - Mathway
: Solve the remaining equation. Step 4: Take answer from Step 3 and plug it into the first equation to find the other variable. 1) 2) Step 1: Write the coefficients of the variables in a matrix [A]. Write the answers to the equations in matrix [B]. Step 2: Enter [A] and [B] in the calculator. Step 3
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[DOC File]Lesson: Solving Systems of Equations by the Substitution ...
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Today we will be learning how to solve a system of equations using a method known as substitution. Rather than simply listening to me explain how to do it, I’m going to have you and a partner explore and discover the method yourselves. Woo-hoo! (Let’s begin … EXAMPLE 1. y = x + 1. 2x + y = 7. Explain:
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[DOC File]Fayette County Public Schools
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Use graphing to find an intersection point (with and without a calculator) Use substitution to find the solution to a system (see last quiz) Use elimination to find the solution to a system. Use the correct (easiest) method to find the solution to a system. Read, comprehend, and solve real world problems.
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[DOC File]Lesson: Systems of Equations
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If yes, then this is a system of equations. Graph both equations; the solution to the system is the intersection point of the graphs. To calculate the intersection point use either: Substitution: solve one equation for a variable, substituting the expression you obtain into the second equation, then solving that resulting equation for a value, or
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[DOC File]Solving systems by substitution
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Use substitution to solve the system of equations. If the system does not have one solution tell whether it has infinitely many solutions or no solution. Y = 2x + 1. 2y = 4x +2. Step 1 - Choose a variable to solve for. Look for the easiest way to solve the problem. Because the first equation is already solved for y I will choose the first equation.
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[DOC File]Section 1 - Quia
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Students will use a graphing calculator to solve linear systems of equations in two variables using graphing features and table features. Students will then learn the algebraic methods of substitution and elimination. Students will identify which method is most appropriate for a given system, and use these systems to solve practical applications.
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Solve the system by substitution calculator