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3 years ago

I need help . Top left corner

Mathematics

1 answer:

WARRIOR [948]3 years ago

5 0

Substitute

x+12y=-15
-8x+6y=18

x=-15-12y
-8(-15-12y)+6y=18

120+96y+6y=18
102y=-102
y=-1

x+12(-1)=-15
x-12=-15
x=-3

(-3,-1)

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