6+7x=78+x

Solution for 6+7x=78+x equation:

Simplifying
6 + 7x = 78 + x

Solving
6 + 7x = 78 + 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.
6 + 7x + -1x = 78 + x + -1x

Combine like terms: 7x + -1x = 6x
6 + 6x = 78 + x + -1x

Combine like terms: x + -1x = 0
6 + 6x = 78 + 0
6 + 6x = 78

Add '-6' to each side of the equation.
6 + -6 + 6x = 78 + -6

Combine like terms: 6 + -6 = 0
0 + 6x = 78 + -6
6x = 78 + -6

Combine like terms: 78 + -6 = 72
6x = 72

Divide each side by '6'.
x = 12

Simplifying
x = 12