solve by elimination method x-2y=-90 3x-y=-40
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Answer:
x=-34
y=-62
Step-by-step explanation:
x-2y=-90
3x-y=-40 ×2
x-2y=-90
6x-2y=-80
=-5x=170
x= -34
y= -34-2y=90
-2y=124
y= - 62
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