SOLUTION: Solve the system by substitution.
3x – y = –7
x + y = –9
Algebra.Com
Question 108316: Solve the system by substitution.
3x – y = –7
x + y = –9
Answer by HyperBrain(694) (Show Source): You can put this solution on YOUR website!
but, . So,
Solving for y,
THerefore, x=-5 and x=-4
Power up,
HyperBrain!
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