75-x=21

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Solution for 75-x=21 equation:


Simplifying
75 + -1x = 21

Solving
75 + -1x = 21

Solving for variable 'x'.

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

Add '-75' to each side of the equation.
75 + -75 + -1x = 21 + -75

Combine like terms: 75 + -75 = 0
0 + -1x = 21 + -75
-1x = 21 + -75

Combine like terms: 21 + -75 = -54
-1x = -54

Divide each side by '-1'.
x = 54

Simplifying
x = 54

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