4(a+2)=20

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Solution for 4(a+2)=20 equation: 


Simplifying
4(a + 2) = 20

Reorder the terms:
4(2 + a) = 20
(2 * 4 + a * 4) = 20
(8 + 4a) = 20

Solving
8 + 4a = 20

Solving for variable 'a'.

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

Add '-8' to each side of the equation.
8 + -8 + 4a = 20 + -8

Combine like terms: 8 + -8 = 0
0 + 4a = 20 + -8
4a = 20 + -8

Combine like terms: 20 + -8 = 12
4a = 12

Divide each side by '4'.
a = 3

Simplifying
a = 3

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