Question

 0,5*(3х-5)=8-0,4*(6-2,5х)

Answer 1

0,5*(3x-5)=8-0,4*(6-2,5x)
1.5x-2.5-8+0.4*(6-2.5x)=0
1.5x-10.5+0.4*(6-2.5x)=0

1.5x-10.5+2.4-x=0

1.5x-8.1-x=0

0.5x-8.1=0

x=8.1/0.5

x=16.2