3 years ago

X + 3y =- 12 y+ 3 =- {(x – 3)

Mathematics

1 answer:

fenix001 [56]3 years ago

8 0

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

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