The first step is 3x+18=24 to solve the 3(6 + x) = 24 equation.
Given equation is 3(6 + x) = 24.
Rearrange terms
3(x+6)=24
Distribute
3x+18=24
Add/subtract to both sides
3x+18−18=24−18
Simplify
3x=6
Divide both sides of the equation by the same factor
3 / 3x = 3 / 6
Simplify
x=2