15/3+(x- 15)/ 1.5-x/3 = 10

That is, 5+2 (x-15)/3-x/3 =10.

Multiply both sides by 3 at the same time.

15+2(x- 15)-x=30

15+2x-30-x=30

The solution is x=45.

2 3x+3(x+0.5)=24

Without brackets: 3x+3x+ 1.5=24.

Transferred items: 3x+3x=24- 1.5

Combine similar projects: 6x=22.5

The coefficient is 1: x=3.75.

1-x÷5=3( 1-x÷4)

Without brackets: 1- x/5=3-3x/4.

Remove the denominator: (both sides are multiplied by 20 at the same time) 20-4x = 60-15x.

Transferred items: -4x+ 15x=60-20

Merge similar items: 1 1x=40.

The coefficient is 1: x=40/ 1 1.