4.2=x-72

Solution for 4.2=x-72 equation:

Simplifying
4.2 = x + -72

Reorder the terms:
4.2 = -72 + x

Solving
4.2 = -72 + 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.
4.2 + -1x = -72 + x + -1x

Combine like terms: x + -1x = 0
4.2 + -1x = -72 + 0
4.2 + -1x = -72

Add '-4.2' to each side of the equation.
4.2 + -4.2 + -1x = -72 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + -1x = -72 + -4.2
-1x = -72 + -4.2

Combine like terms: -72 + -4.2 = -76.2
-1x = -76.2

Divide each side by '-1'.
x = 76.2

Simplifying
x = 76.2