-4-20a=216

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Solution for -4-20a=216 equation: 


Simplifying
-4 + -20a = 216

Solving
-4 + -20a = 216

Solving for variable 'a'.

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

Add '4' to each side of the equation.
-4 + 4 + -20a = 216 + 4

Combine like terms: -4 + 4 = 0
0 + -20a = 216 + 4
-20a = 216 + 4

Combine like terms: 216 + 4 = 220
-20a = 220

Divide each side by '-20'.
a = -11

Simplifying
a = -11

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