Solve by substitution x=-3y-2 -4x-5y=8

Mathematics

2 answers:

GREYUIT [131]4 years ago

6 0

The solution is( -2,0) did that in my head

Dafna11 [192]4 years ago

3 0

<span>x = -3y - 2
-4x - 5y=8

-4(</span>-3y - 2) -5y = 8
12y + 8 - 5y = 8
7y + 8 = 8
7y = 0
y = 0

<span>x= -3(0) - 2
</span>x = -2

solutions (-2,0)

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