Question: Math

Solve for both systems: - 3x + 2y = 1 and - 2x - 2y = - 16

In Math | Asked by AnneS2
Answers

 - 2x - 2y = - 16

 - 2x - 2y+2y = - 16+2y

-2x= - 16+2y

-2x/-2= - 16+2y/-2

x=8-y

- 3x + 2y = 1 

- 3(8-y) + 2y = 1 

- 3(8)  (-3)(-y) + 2y = 1 

-24+3y+2y=1

-24+5y=1

-24+5y+24=1+24

5y=25

5y/5=25/5

y=5

x=8-y

x=8-5=3

 

CherieS | 413 days ago