Question

X + 3y =- 12 y+ 3 =- {(x – 3)

Answer 1

Answer:

x = 6, y = -6

Step-by-step explanation:

solve for x and y

x + 3y =  -12

y + 3 = -x + 3

add

(x + 3y)  +  -x + 3  =  -12 + y + 3

3y + 3 = y - 9

2y + 3 = -9

2y = -12

y = - 6

x + 3(-6) = -12

x - 18 = -12

x = 6