45-12=X

Solution for 45-12=X equation:

Simplifying
45 + -12 = X

Combine like terms: 45 + -12 = 33
33 = X

Solving
33 = 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.
33 + -1X = X + -1X

Combine like terms: X + -1X = 0
33 + -1X = 0

Add '-33' to each side of the equation.
33 + -33 + -1X = 0 + -33

Combine like terms: 33 + -33 = 0
0 + -1X = 0 + -33
-1X = 0 + -33

Combine like terms: 0 + -33 = -33
-1X = -33

Divide each side by '-1'.
X = 33

Simplifying
X = 33