3a+a=180

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Solution for 3a+a=180 equation: 


Simplifying
3a + a = 180

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

Solving
4a = 180

Solving for variable 'a'.

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

Divide each side by '4'.
a = 45

Simplifying
a = 45

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