kimbriea
Answered

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how to solve 3x+y=-14;-2x-y=9

Sagot :

hackerguy
3x+y=-14
-2x-y=9
++++++++++++
x=-5
y=1
AndyBryer
This is a set of simultaneous equations.
3x+y=-14
-2x-y=9
Use elimination by addition
x=-5
the substitute for y
y=1
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