2x+6+7=20

Solution for 2x+6+7=20 equation:

Simplifying
2x + 6 + 7 = 20

Reorder the terms:
6 + 7 + 2x = 20

Combine like terms: 6 + 7 = 13
13 + 2x = 20

Solving
13 + 2x = 20

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + 2x = 20 + -13

Combine like terms: 13 + -13 = 0
0 + 2x = 20 + -13
2x = 20 + -13

Combine like terms: 20 + -13 = 7
2x = 7

Divide each side by '2'.
x = 3.5

Simplifying
x = 3.5