Math

Solve for - 3x - 3y = - 15 and - 3x + y = 5

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- 3x + y = 5

- 3x +3x+ y = 5+3x

y = 5+3x

- 3x - 3y = - 15

- 3x - 3(5+3x) = - 15

- 3x - 3(5) (-3)(+3x) = - 15

- 3x - 15-9x= - 15

- 15-12x= - 15

- 15+15-12x= - 15+15

-12x=0

-12x/-12=0/-12

x=0

y = 5+3x

y = 5+3(0)

y=5+0=5