21+34=x

Solution for 21+34=x equation:

Simplifying
21 + 34 = x

Combine like terms: 21 + 34 = 55
55 = x

Solving
55 = 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.
55 + -1x = x + -1x

Combine like terms: x + -1x = 0
55 + -1x = 0

Add '-55' to each side of the equation.
55 + -55 + -1x = 0 + -55

Combine like terms: 55 + -55 = 0
0 + -1x = 0 + -55
-1x = 0 + -55

Combine like terms: 0 + -55 = -55
-1x = -55

Divide each side by '-1'.
x = 55

Simplifying
x = 55