12.3=x+7.2

Solution for 12.3=x+7.2 equation:

Simplifying
12.3 = x + 7.2

Reorder the terms:
12.3 = 7.2 + x

Solving
12.3 = 7.2 + 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.
12.3 + -1x = 7.2 + x + -1x

Combine like terms: x + -1x = 0
12.3 + -1x = 7.2 + 0
12.3 + -1x = 7.2

Add '-12.3' to each side of the equation.
12.3 + -12.3 + -1x = 7.2 + -12.3

Combine like terms: 12.3 + -12.3 = 0.0
0.0 + -1x = 7.2 + -12.3
-1x = 7.2 + -12.3

Combine like terms: 7.2 + -12.3 = -5.1
-1x = -5.1

Divide each side by '-1'.
x = 5.1

Simplifying
x = 5.1