3(6+a)-1a-8=20

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Solution for 3(6+a)-1a-8=20 equation: 


Simplifying
3(6 + a) + -1a + -8 = 20
(6 * 3 + a * 3) + -1a + -8 = 20
(18 + 3a) + -1a + -8 = 20

Reorder the terms:
18 + -8 + 3a + -1a = 20

Combine like terms: 18 + -8 = 10
10 + 3a + -1a = 20

Combine like terms: 3a + -1a = 2a
10 + 2a = 20

Solving
10 + 2a = 20

Solving for variable 'a'.

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

Add '-10' to each side of the equation.
10 + -10 + 2a = 20 + -10

Combine like terms: 10 + -10 = 0
0 + 2a = 20 + -10
2a = 20 + -10

Combine like terms: 20 + -10 = 10
2a = 10

Divide each side by '2'.
a = 5

Simplifying
a = 5

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