54+90=x

Solution for 54+90=x equation:

Simplifying
54 + 90 = x

Combine like terms: 54 + 90 = 144
144 = x

Solving
144 = 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.
144 + -1x = x + -1x

Combine like terms: x + -1x = 0
144 + -1x = 0

Add '-144' to each side of the equation.
144 + -144 + -1x = 0 + -144

Combine like terms: 144 + -144 = 0
0 + -1x = 0 + -144
-1x = 0 + -144

Combine like terms: 0 + -144 = -144
-1x = -144

Divide each side by '-1'.
x = 144

Simplifying
x = 144