2x+15+x-21=180

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Solution for 2x+15+x-21=180 equation:


Simplifying
2x + 15 + x + -21 = 180

Reorder the terms:
15 + -21 + 2x + x = 180

Combine like terms: 15 + -21 = -6
-6 + 2x + x = 180

Combine like terms: 2x + x = 3x
-6 + 3x = 180

Solving
-6 + 3x = 180

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 3x = 180 + 6

Combine like terms: -6 + 6 = 0
0 + 3x = 180 + 6
3x = 180 + 6

Combine like terms: 180 + 6 = 186
3x = 186

Divide each side by '3'.
x = 62

Simplifying
x = 62

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