Question

3w-2u=12 and w-u=60 solve

Answer 1

3(60)-2(60)=12
180-120=12
60=15
60/15
=5

Answer 2

w - u = 60.....w = 60 + u

3w - 2u = 12
3(60 + u) - 2u = 12
180 + 3u - 2u = 12
3u - 2u = 12 - 180
u = -168

w = 60 + u
w = 60 - 168
w = - 108

solution is (-168,-108)