(13x+12)+(21x-2)=180

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Solution for (13x+12)+(21x-2)=180 equation:


Simplifying
(13x + 12) + (21x + -2) = 180

Reorder the terms:
(12 + 13x) + (21x + -2) = 180

Remove parenthesis around (12 + 13x)
12 + 13x + (21x + -2) = 180

Reorder the terms:
12 + 13x + (-2 + 21x) = 180

Remove parenthesis around (-2 + 21x)
12 + 13x + -2 + 21x = 180

Reorder the terms:
12 + -2 + 13x + 21x = 180

Combine like terms: 12 + -2 = 10
10 + 13x + 21x = 180

Combine like terms: 13x + 21x = 34x
10 + 34x = 180

Solving
10 + 34x = 180

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + 34x = 180 + -10

Combine like terms: 10 + -10 = 0
0 + 34x = 180 + -10
34x = 180 + -10

Combine like terms: 180 + -10 = 170
34x = 170

Divide each side by '34'.
x = 5

Simplifying
x = 5

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