2 years ago

I need help with number 4!

Mathematics

2 answers:

irina1246 [14]2 years ago

7 0

X is -8 and Y is 6 I hoped this helps!

lesya692 [45]2 years ago

5 0

Answer:

x = -8, y = 6

Step-by-step explanation:

x + 2y = 4 ------(1)

x + y = - 2

y = - x - 2 ----------(2)

Substitute y in (1)

x + 2(- x - 2) = 4

x - 2x - 4 = 4

- x = 4 + 4

x = -8

Substitute x in (2)

y = - (- 8) - 2 = 8 - 2 = 6

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