SOLUTION: 7x+9y=21
3x-9y= -81
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Question 473197: 7x+9y=21
3x-9y= -81
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
7x+9y=21
3x-9y= -81
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10x+0y=-60
10x=-60
x=-60/10
x=-6
3x-9y=-81
3(-6)-9y=-81
-18-9y=-81
-9y=-81+18
-9y=-63
y=-63/(-9)
y=7
Answers: x=-6 and y=7
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