Answer:
x = 6.5
Explanation:
3x -5y =22
y = -5x +32
Substitute the second equation into the first equation
3x - 5(-5x +32)=22
3x +25x -160 =22
28x -160 =22
Add 160 to each side
28x -160+160 = 22+160
28x = 182
Divide each side by 28
28x/28 = 182/28
x = 6.5