Question: Math

Solve for both systems: 5x + 5y = 0 and 20x + 2y = - 180

In Math | Asked by AnneS2
Answers

5x + 5y = 0 

5x-5x + 5y = 0-5x 

5y = 0-5x 

5y /5= 0-5x /5

y=0-x

20x + 2y = - 180

20x + 2(0-x) = - 180

20x + 2(0)  (2)(-x) = - 180

20x-2x= - 180

18x= - 180

18x/18= - 180/18

x=-10

y=0-x

y=0-(-10)

y=10

 

CherieS | 438 days ago