34=x+21

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Solution for 34=x+21 equation:


Simplifying
34 = x + 21

Reorder the terms:
34 = 21 + x

Solving
34 = 21 + 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.
34 + -1x = 21 + x + -1x

Combine like terms: x + -1x = 0
34 + -1x = 21 + 0
34 + -1x = 21

Add '-34' to each side of the equation.
34 + -34 + -1x = 21 + -34

Combine like terms: 34 + -34 = 0
0 + -1x = 21 + -34
-1x = 21 + -34

Combine like terms: 21 + -34 = -13
-1x = -13

Divide each side by '-1'.
x = 13

Simplifying
x = 13

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