SOLUTION: 3x-y=-7 x+y= -9

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Question 110679This question is from textbook
: 3x-y=-7
x+y= -9This question is from textbook

Answer by solver91311(12126) About Me  (Show Source):
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3x-y=-7
x%2By=-9
:
Add the second equation to the first, term by term.
:
4x=-16
x=-4
:
Substitute -4 for x in either of the original equations.
:
-4%2By=-9
y=-5
:
Check:
3%28-4%29-%28-5%29=-7, -12%2B5=-7, check
-4-5=-9, check