3a+20-a+10=180

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Solution for 3a+20-a+10=180 equation:


Simplifying
3a + 20 + -1a + 10 = 180

Reorder the terms:
20 + 10 + 3a + -1a = 180

Combine like terms: 20 + 10 = 30
30 + 3a + -1a = 180

Combine like terms: 3a + -1a = 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 = 150
2a = 150

Divide each side by '2'.
a = 75

Simplifying
a = 75

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