First, remove parentheses.

Combine like terms

Transpose *x* terms to one side and numbers to the other.

Combine like terms.

Divide both sides by the coefficient of the unknown

Copy down the original equation

except copy down the solution in parentheses wherever you see the unknown.

This gives us an order of operations problem. Do what's inside the parentheses first. Inside each parentheses is a multiplication and a subtraction problem. Do the multiplication first, and copy down the rest of the problem.

Next, subtract inside the parentheses.

Do the multiplications first.

Subtract.

and it checks.