Solve for - 2x - 2y = - 2 and 5x + 2y = 23

Asked by AnneS2 on 18 Jun 05:13

Last updated by anonymous on 19 Jun 12:11

Answered by CherieS on 19 Jun 12:11

- 2x - 2y = - 2

- 2x - 2y+2y = - 2 +2y

-2x= - 2 +2y

-2x/-2= - 2/-2 +2y/-2

x=1-y

5x + 2y = 23

5(1-y) + 2y = 23

5(1) (5)(-y) + 2y = 23

5-5y+ 2y = 23

5-3y = 23

5-3y-5 = 23-5

-3y=18

-3y/-3=18/-3

y=-6

x=1-y

x=1-(-6)=1+6

x=7