6x-21+123-2x=180

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Solution for 6x-21+123-2x=180 equation:


Simplifying
6x + -21 + 123 + -2x = 180

Reorder the terms:
-21 + 123 + 6x + -2x = 180

Combine like terms: -21 + 123 = 102
102 + 6x + -2x = 180

Combine like terms: 6x + -2x = 4x
102 + 4x = 180

Solving
102 + 4x = 180

Solving for variable 'x'.

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

Add '-102' to each side of the equation.
102 + -102 + 4x = 180 + -102

Combine like terms: 102 + -102 = 0
0 + 4x = 180 + -102
4x = 180 + -102

Combine like terms: 180 + -102 = 78
4x = 78

Divide each side by '4'.
x = 19.5

Simplifying
x = 19.5

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