6+7x=-x+86

Solution for 6+7x=-x+86 equation:

Simplifying
6 + 7x = -1x + 86

Reorder the terms:
6 + 7x = 86 + -1x

Solving
6 + 7x = 86 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
6 + 7x + x = 86 + -1x + x

Combine like terms: 7x + x = 8x
6 + 8x = 86 + -1x + x

Combine like terms: -1x + x = 0
6 + 8x = 86 + 0
6 + 8x = 86

Add '-6' to each side of the equation.
6 + -6 + 8x = 86 + -6

Combine like terms: 6 + -6 = 0
0 + 8x = 86 + -6
8x = 86 + -6

Combine like terms: 86 + -6 = 80
8x = 80

Divide each side by '8'.
x = 10

Simplifying
x = 10