delane22 delane22
  • 21-02-2017
  • Mathematics
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-5x+y=-2 solve system of equations by subtraction

5xy2 solve system of equations by subtraction class=

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cher
cher cher
  • 21-02-2017
EQUATION 1)    -5x+y=-2   =====> Multiply by 6
EQUATION 2)    -3x+6y=-12 

1)    -30x+6y=12
2)    -3x+6y=-12

SUBTRACT BOTH EQUATIONS

-27x=0
x=0

-5(0)+y=-2
0+y=-2
y=-2



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