(3x-1)+(9x-7)=180

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Solution for (3x-1)+(9x-7)=180 equation:


Simplifying
(3x + -1) + (9x + -7) = 180

Reorder the terms:
(-1 + 3x) + (9x + -7) = 180

Remove parenthesis around (-1 + 3x)
-1 + 3x + (9x + -7) = 180

Reorder the terms:
-1 + 3x + (-7 + 9x) = 180

Remove parenthesis around (-7 + 9x)
-1 + 3x + -7 + 9x = 180

Reorder the terms:
-1 + -7 + 3x + 9x = 180

Combine like terms: -1 + -7 = -8
-8 + 3x + 9x = 180

Combine like terms: 3x + 9x = 12x
-8 + 12x = 180

Solving
-8 + 12x = 180

Solving for variable 'x'.

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

Add '8' to each side of the equation.
-8 + 8 + 12x = 180 + 8

Combine like terms: -8 + 8 = 0
0 + 12x = 180 + 8
12x = 180 + 8

Combine like terms: 180 + 8 = 188
12x = 188

Divide each side by '12'.
x = 15.66666667

Simplifying
x = 15.66666667

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