39-18=(x-6)

Solution for 39-18=(x-6) equation:

Simplifying
39 + -18 = (x + -6)

Combine like terms: 39 + -18 = 21
21 = (x + -6)

Reorder the terms:
21 = (-6 + x)

Remove parenthesis around (-6 + x)
21 = -6 + x

Solving
21 = -6 + x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x' to each side of the equation.
21 + -1x = -6 + x + -1x

Combine like terms: x + -1x = 0
21 + -1x = -6 + 0
21 + -1x = -6

Add '-21' to each side of the equation.
21 + -21 + -1x = -6 + -21

Combine like terms: 21 + -21 = 0
0 + -1x = -6 + -21
-1x = -6 + -21

Combine like terms: -6 + -21 = -27
-1x = -27

Divide each side by '-1'.
x = 27

Simplifying
x = 27