x+6+2x-3+4x-21=180

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Solution for x+6+2x-3+4x-21=180 equation: 


Simplifying
x + 6 + 2x + -3 + 4x + -21 = 180

Reorder the terms:
6 + -3 + -21 + x + 2x + 4x = 180

Combine like terms: 6 + -3 = 3
3 + -21 + x + 2x + 4x = 180

Combine like terms: 3 + -21 = -18
-18 + x + 2x + 4x = 180

Combine like terms: x + 2x = 3x
-18 + 3x + 4x = 180

Combine like terms: 3x + 4x = 7x
-18 + 7x = 180

Solving
-18 + 7x = 180

Solving for variable 'x'.

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

Add '18' to each side of the equation.
-18 + 18 + 7x = 180 + 18

Combine like terms: -18 + 18 = 0
0 + 7x = 180 + 18
7x = 180 + 18

Combine like terms: 180 + 18 = 198
7x = 198

Divide each side by '7'.
x = 28.28571429

Simplifying
x = 28.28571429

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