# algebra 2

If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the first equation is substituted into the second equation.

x + y = 2
3x + 2y = 9

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1. x + y = 2 Multiply both sides by 2

2 x + 2 y = 4

2 y = 4 - 2 x

3 x + 2 y = 9

3 x + 4 - 2 x = 9

x + 4 = 9

x = 9 - 4 = 5

x + y = 2

5 + y = 2

y = 2 - 5 = - 3

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