20-3a=2

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Solution for 20-3a=2 equation: 


Simplifying
20 + -3a = 2

Solving
20 + -3a = 2

Solving for variable 'a'.

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

Add '-20' to each side of the equation.
20 + -20 + -3a = 2 + -20

Combine like terms: 20 + -20 = 0
0 + -3a = 2 + -20
-3a = 2 + -20

Combine like terms: 2 + -20 = -18
-3a = -18

Divide each side by '-3'.
a = 6

Simplifying
a = 6

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