a+2a+(3a-12)=180

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Solution for a+2a+(3a-12)=180 equation:


Simplifying
a + 2a + (3a + -12) = 180

Reorder the terms:
a + 2a + (-12 + 3a) = 180

Remove parenthesis around (-12 + 3a)
a + 2a + -12 + 3a = 180

Reorder the terms:
-12 + a + 2a + 3a = 180

Combine like terms: a + 2a = 3a
-12 + 3a + 3a = 180

Combine like terms: 3a + 3a = 6a
-12 + 6a = 180

Solving
-12 + 6a = 180

Solving for variable 'a'.

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

Add '12' to each side of the equation.
-12 + 12 + 6a = 180 + 12

Combine like terms: -12 + 12 = 0
0 + 6a = 180 + 12
6a = 180 + 12

Combine like terms: 180 + 12 = 192
6a = 192

Divide each side by '6'.
a = 32

Simplifying
a = 32

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