Question

Solve equations by using elimination
-4+5y= 13
X-5y=21
( , )

Answer 1

y=17/5 ,x= 38

Explanation:

-4+5y =13 add 4 both side

4-4+5y=13+4

5y=17

5y/5=17/5 y=17/5

x-5y=21

x-5(17/5)=21

x-17=21

x=21+17= 38