(9x+4)+(4x+7)=180

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Solution for (9x+4)+(4x+7)=180 equation:


Simplifying
(9x + 4) + (4x + 7) = 180

Reorder the terms:
(4 + 9x) + (4x + 7) = 180

Remove parenthesis around (4 + 9x)
4 + 9x + (4x + 7) = 180

Reorder the terms:
4 + 9x + (7 + 4x) = 180

Remove parenthesis around (7 + 4x)
4 + 9x + 7 + 4x = 180

Reorder the terms:
4 + 7 + 9x + 4x = 180

Combine like terms: 4 + 7 = 11
11 + 9x + 4x = 180

Combine like terms: 9x + 4x = 13x
11 + 13x = 180

Solving
11 + 13x = 180

Solving for variable 'x'.

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

Add '-11' to each side of the equation.
11 + -11 + 13x = 180 + -11

Combine like terms: 11 + -11 = 0
0 + 13x = 180 + -11
13x = 180 + -11

Combine like terms: 180 + -11 = 169
13x = 169

Divide each side by '13'.
x = 13

Simplifying
x = 13

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