5.2+15.6+6.5+x=42.5

Solution for 5.2+15.6+6.5+x=42.5 equation:

Simplifying
5.2 + 15.6 + 6.5 + x = 42.5

Combine like terms: 5.2 + 15.6 = 20.8
20.8 + 6.5 + x = 42.5

Combine like terms: 20.8 + 6.5 = 27.3
27.3 + x = 42.5

Solving
27.3 + x = 42.5

Solving for variable 'x'.

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

Add '-27.3' to each side of the equation.
27.3 + -27.3 + x = 42.5 + -27.3

Combine like terms: 27.3 + -27.3 = 0.0
0.0 + x = 42.5 + -27.3
x = 42.5 + -27.3

Combine like terms: 42.5 + -27.3 = 15.2
x = 15.2

Simplifying
x = 15.2