Substitution Worksheet With Answer Key - Waynesville R-Vi School District Page 11
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386-2 Substitution
The solution is ( 3, 11).
2x + y = 3
4x + 4y = 8
2x + y = 3
4x + 4y = 8
First, solve the first equation for y to get y = 2x + 3. Then substitute 2x + 3 for y in the second equation.
Use the solution for x and either equation to find y.
The solution is (1, 1).
3x + 4y = 3
x + 2y = 1
3x + 4y = 3
x + 2y = 1
First, solve the second equation for x to get x = 2y
1. Then, substitute 2y
1 for x in the first equation.
Page 11
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Use the solution for y and either equation to find x.
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