1) (y:4-35)*12=300
y:4-35= 25
y:4=60
y=240
2) (150:y+6)-6=50
150:y+6=56
150:y=50
150:50=y
y=3
3) (8x-30):2=225
8x-30=450
8x=480
x=60
1) (y:4-35)*12=300
y:4-35= 25
y:4=60
y=240
2) (150:y+6)-6=50
150:y+6=56
150:y=50
150:50=y
y=3
3) (8x-30):2=225
8x-30=450
8x=480
x=60