20=2(a+6)

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Solution for 20=2(a+6) equation:


Simplifying
20 = 2(a + 6)

Reorder the terms:
20 = 2(6 + a)
20 = (6 * 2 + a * 2)
20 = (12 + 2a)

Solving
20 = 12 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
20 + -2a = 12 + 2a + -2a

Combine like terms: 2a + -2a = 0
20 + -2a = 12 + 0
20 + -2a = 12

Add '-20' to each side of the equation.
20 + -20 + -2a = 12 + -20

Combine like terms: 20 + -20 = 0
0 + -2a = 12 + -20
-2a = 12 + -20

Combine like terms: 12 + -20 = -8
-2a = -8

Divide each side by '-2'.
a = 4

Simplifying
a = 4

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