robaynosd robaynosd

26-01-2017
Mathematics

Answered

-7x-2y=-13 what is the

x-2y=11

Verified Answer :

wolf1728 wolf1728

26-01-2017

A) -7x-2y= -13

Bx-2y= 11

Multiply equation B by -1

A) -7x -2y = -13

B-x +2y = -11
Add the equations

-8x = -24
X = 3
Putting X =3 into Equation B
B) -3 + 2y = -11
2y = -8
y = -4

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