42+x=(13+x).2

Solution for 42+x=(13+x).2 equation:

Simplifying
42 + x = (13 + x) * 0.2

Reorder the terms for easier multiplication:
42 + x = 0.2(13 + x)
42 + x = (13 * 0.2 + x * 0.2)
42 + x = (2.6 + 0.2x)

Solving
42 + x = 2.6 + 0.2x

Solving for variable 'x'.

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

Add '-0.2x' to each side of the equation.
42 + x + -0.2x = 2.6 + 0.2x + -0.2x

Combine like terms: x + -0.2x = 0.8x
42 + 0.8x = 2.6 + 0.2x + -0.2x

Combine like terms: 0.2x + -0.2x = 0.0
42 + 0.8x = 2.6 + 0.0
42 + 0.8x = 2.6

Add '-42' to each side of the equation.
42 + -42 + 0.8x = 2.6 + -42

Combine like terms: 42 + -42 = 0
0 + 0.8x = 2.6 + -42
0.8x = 2.6 + -42

Combine like terms: 2.6 + -42 = -39.4
0.8x = -39.4

Divide each side by '0.8'.
x = -49.25

Simplifying
x = -49.25