Substitution Worksheet With Answer Key - Waynesville R-Vi School District Page 17
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386-2 Substitution
The solution is (2, 5).
2x + y = 4
2x + y = 4
2x + y = 4
2x + y = 4
First, solve the first equation for y to get y = 2x + 4. Then, substitute 2x + 4 for y in the second equation.
Use the solution for x and either equation to find y.
The solution is (2, 0).
5x + 4y = 20
10x
8y = 40
5x + 4y = 20
10x
8y = 40
First, solve the first equation for y.
Then, substitute
for y in the second equation.
Page 17
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