56-x=21

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Solution for 56-x=21 equation: 


Simplifying
56 + -1x = 21

Solving
56 + -1x = 21

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-56' to each side of the equation.
56 + -56 + -1x = 21 + -56

Combine like terms: 56 + -56 = 0
0 + -1x = 21 + -56
-1x = 21 + -56

Combine like terms: 21 + -56 = -35
-1x = -35

Divide each side by '-1'.
x = 35

Simplifying
x = 35

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