(x-21)+x=75

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Solution for (x-21)+x=75 equation:


Simplifying
(x + -21) + x = 75

Reorder the terms:
(-21 + x) + x = 75

Remove parenthesis around (-21 + x)
-21 + x + x = 75

Combine like terms: x + x = 2x
-21 + 2x = 75

Solving
-21 + 2x = 75

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 2x = 75 + 21

Combine like terms: -21 + 21 = 0
0 + 2x = 75 + 21
2x = 75 + 21

Combine like terms: 75 + 21 = 96
2x = 96

Divide each side by '2'.
x = 48

Simplifying
x = 48

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