20a-15a-a=20

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Solution for 20a-15a-a=20 equation:


Simplifying
20a + -15a + -1a = 20

Combine like terms: 20a + -15a = 5a
5a + -1a = 20

Combine like terms: 5a + -1a = 4a
4a = 20

Solving
4a = 20

Solving for variable 'a'.

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

Divide each side by '4'.
a = 5

Simplifying
a = 5

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