Keithmfv548viz
Answered

Solve the system by substitution:

2x + 3y = 16
3x – y = 2

Sagot :

Mlcparra16viz
We make the second equation as follows:
3x - y = 2
-y = 2 - 3x
y = 3x - 2

So:
2x + 3y = 16
2x + 3(3x - 2) = 16
2x + 9x -6 = 16
11x = 22
x = 2

y = 3x - 2
y = 3(2) - 2 = 6 -2 = 4