laurynstiles202 laurynstiles202

05-12-2017
Mathematics

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Find the solution of this system of equations
-2x-2y=-12
4x-7y=-15

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frenchy9 frenchy9

05-12-2017

-2x-2y=-12
4x-7y=-15

Solve for x in the first equation
-2x=-12+2y
2x=12-2y
x=6-y
Plug x into the second equation
4(6-y)-7y=-15
24-4y-7y=-15
24-11y=-15
11y=39
y=3.54
Plug that into the eqaution for x
x=6-3.54
x=2.46

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