3a-a-a+a=20

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


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

Combine like terms: 3a + -1a = 2a
2a + -1a + a = 20

Combine like terms: 2a + -1a = 1a
1a + a = 20

Combine like terms: 1a + a = 2a
2a = 20

Solving
2a = 20

Solving for variable 'a'.

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

Divide each side by '2'.
a = 10

Simplifying
a = 10

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