Question

Use substitution to solve the system.
(2x - 4y = 10
x + 2y = 5
(x, y) =

Answer 1

First isolate x in the second equation.
X=5-2y

Then substitute the value of x into the first equation

2(5-2y)-4y=10
10-4y-4y=10
-8y=0
Y= 0

Then substitute what the value of y into either equation to solve tor x

X+2(0)=5
X=5


(x,y) =(5,0)