How to calculate the equation of 8.5 + 65% x = 15

How to calculate the equation of 8.5 + 65% x = 15


8.5+65%x=15
65%x=15-8.5=6.5
x=6.5÷65%
=10



How to solve 60% x 25 = 40 equation


60%=0.6
60%x 25=40
0.6* 25*x=40
15x=40
x=40/15=8/3