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Elena-2011 [213]
3 years ago
15

1x+1y=-22x-3y=-9Please help solve this system of linear equations in detail.

Mathematics
1 answer:
elena55 [62]3 years ago
7 0
<span>1x+1y=-2
2x-3y=-9

x = -2 - y

substitute x = -2 - y into </span>2x-3y=-9
2x-3y=-9
2(-2 - y)-3y=-9
-4 - 2y - 3y = -9
-4 - 5y = - 9
5y =5
y = 1

x = -2 - y
x = -2 - 1
x = -3

answer (-3,1)
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