(2x-3)+(x+5)+(21-x)=180

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Solution for (2x-3)+(x+5)+(21-x)=180 equation:


Simplifying
(2x + -3) + (x + 5) + (21 + -1x) = 180

Reorder the terms:
(-3 + 2x) + (x + 5) + (21 + -1x) = 180

Remove parenthesis around (-3 + 2x)
-3 + 2x + (x + 5) + (21 + -1x) = 180

Reorder the terms:
-3 + 2x + (5 + x) + (21 + -1x) = 180

Remove parenthesis around (5 + x)
-3 + 2x + 5 + x + (21 + -1x) = 180

Remove parenthesis around (21 + -1x)
-3 + 2x + 5 + x + 21 + -1x = 180

Reorder the terms:
-3 + 5 + 21 + 2x + x + -1x = 180

Combine like terms: -3 + 5 = 2
2 + 21 + 2x + x + -1x = 180

Combine like terms: 2 + 21 = 23
23 + 2x + x + -1x = 180

Combine like terms: 2x + x = 3x
23 + 3x + -1x = 180

Combine like terms: 3x + -1x = 2x
23 + 2x = 180

Solving
23 + 2x = 180

Solving for variable 'x'.

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

Add '-23' to each side of the equation.
23 + -23 + 2x = 180 + -23

Combine like terms: 23 + -23 = 0
0 + 2x = 180 + -23
2x = 180 + -23

Combine like terms: 180 + -23 = 157
2x = 157

Divide each side by '2'.
x = 78.5

Simplifying
x = 78.5

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