a-5a=20

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Solution for a-5a=20 equation: 


Simplifying
a + -5a = 20

Combine like terms: a + -5a = -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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