a+a-30=180

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Solution for a+a-30=180 equation:


Simplifying
a + a + -30 = 180

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

Combine like terms: a + a = 2a
-30 + 2a = 180

Solving
-30 + 2a = 180

Solving for variable 'a'.

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

Add '30' to each side of the equation.
-30 + 30 + 2a = 180 + 30

Combine like terms: -30 + 30 = 0
0 + 2a = 180 + 30
2a = 180 + 30

Combine like terms: 180 + 30 = 210
2a = 210

Divide each side by '2'.
a = 105

Simplifying
a = 105

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