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Alex17521 [72]
3 years ago
12

Solve the system by the elimination method 6x+2y=-16 -x-3y=-16

Mathematics
1 answer:
koban [17]3 years ago
5 0
Eliminate y's
multiply first equation by 3 and 2nd by 2 and addd them

18x+6y=-48
<u>-2x-6y=-32 +</u>
16x+0y=-80

16x=-80
divide both sides by 16
x=-5
sub back

-x-3y=-16
-(-5)-3y=-16
5-3y=-16
-3y=-21
y=7

(x,y)
(-5,7)
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