(3a+30)+(4a-30)+3a=180

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Solution for (3a+30)+(4a-30)+3a=180 equation: 


Simplifying
(3a + 30) + (4a + -30) + 3a = 180

Reorder the terms:
(30 + 3a) + (4a + -30) + 3a = 180

Remove parenthesis around (30 + 3a)
30 + 3a + (4a + -30) + 3a = 180

Reorder the terms:
30 + 3a + (-30 + 4a) + 3a = 180

Remove parenthesis around (-30 + 4a)
30 + 3a + -30 + 4a + 3a = 180

Reorder the terms:
30 + -30 + 3a + 4a + 3a = 180

Combine like terms: 30 + -30 = 0
0 + 3a + 4a + 3a = 180
3a + 4a + 3a = 180

Combine like terms: 3a + 4a = 7a
7a + 3a = 180

Combine like terms: 7a + 3a = 10a
10a = 180

Solving
10a = 180

Solving for variable 'a'.

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

Divide each side by '10'.
a = 18

Simplifying
a = 18

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