x+(x-12.6)=65.4

Solution for x+(x-12.6)=65.4 equation:

Simplifying
x + (x + -12.6) = 65.4

Reorder the terms:
x + (-12.6 + x) = 65.4

Remove parenthesis around (-12.6 + x)
x + -12.6 + x = 65.4

Reorder the terms:
-12.6 + x + x = 65.4

Combine like terms: x + x = 2x
-12.6 + 2x = 65.4

Solving
-12.6 + 2x = 65.4

Solving for variable 'x'.

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

Add '12.6' to each side of the equation.
-12.6 + 12.6 + 2x = 65.4 + 12.6

Combine like terms: -12.6 + 12.6 = 0.0
0.0 + 2x = 65.4 + 12.6
2x = 65.4 + 12.6

Combine like terms: 65.4 + 12.6 = 78
2x = 78

Divide each side by '2'.
x = 39

Simplifying
x = 39