-20=4a

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Solution for -20=4a equation:


Simplifying
-20 = 4a

Solving
-20 = 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
-20 + -4a = 4a + -4a

Combine like terms: 4a + -4a = 0
-20 + -4a = 0

Add '20' to each side of the equation.
-20 + 20 + -4a = 0 + 20

Combine like terms: -20 + 20 = 0
0 + -4a = 0 + 20
-4a = 0 + 20

Combine like terms: 0 + 20 = 20
-4a = 20

Divide each side by '-4'.
a = -5

Simplifying
a = -5

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