(6x)+(6x-9)+(3x+6x)=180

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Solution for (6x)+(6x-9)+(3x+6x)=180 equation:


Simplifying
(6x) + (6x + -9) + (3x + 6x) = 180

Reorder the terms:
(6x) + (-9 + 6x) + (3x + 6x) = 180

Remove parenthesis around (-9 + 6x)
(6x) + -9 + 6x + (3x + 6x) = 180

Combine like terms: 3x + 6x = 9x
(6x) + -9 + 6x + (9x) = 180
(6x) + -9 + 6x + (9x) = 180

Reorder the terms:
-9 + (6x) + 6x + (9x) = 180

Combine like terms: (6x) + 6x = 12x
-9 + 12x + (9x) = 180

Combine like terms: 12x + (9x) = 21x
-9 + 21x = 180

Solving
-9 + 21x = 180

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 21x = 180 + 9

Combine like terms: -9 + 9 = 0
0 + 21x = 180 + 9
21x = 180 + 9

Combine like terms: 180 + 9 = 189
21x = 189

Divide each side by '21'.
x = 9

Simplifying
x = 9

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