Hopkinssub121viz
Answered

Solve the following by substitution:
x + 2y = 4
2x – y = 3

Sagot :

Mlcparra16viz
x + 2y = 4
x = 4 - 2y 

2x - y = 3
2(4 - 2y) - y = 3
8 - 4y - y = 3
-5y = -5
y = 1

x = 4 - 2y
x = 4 - 2(1) = 4 - 2 = 2