2(a+4b)=12

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Solution for 2(a+4b)=12 equation: 


Simplifying
2(a + 4b) = 12
(a * 2 + 4b * 2) = 12
(2a + 8b) = 12

Solving
2a + 8b = 12

Solving for variable 'a'.

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

Add '-8b' to each side of the equation.
2a + 8b + -8b = 12 + -8b

Combine like terms: 8b + -8b = 0
2a + 0 = 12 + -8b
2a = 12 + -8b

Divide each side by '2'.
a = 6 + -4b

Simplifying
a = 6 + -4b

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