2x+9+3x-21=180

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Solution for 2x+9+3x-21=180 equation:


Simplifying
2x + 9 + 3x + -21 = 180

Reorder the terms:
9 + -21 + 2x + 3x = 180

Combine like terms: 9 + -21 = -12
-12 + 2x + 3x = 180

Combine like terms: 2x + 3x = 5x
-12 + 5x = 180

Solving
-12 + 5x = 180

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 5x = 180 + 12

Combine like terms: -12 + 12 = 0
0 + 5x = 180 + 12
5x = 180 + 12

Combine like terms: 180 + 12 = 192
5x = 192

Divide each side by '5'.
x = 38.4

Simplifying
x = 38.4

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