2(3-4a)=-42

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Solution for 2(3-4a)=-42 equation: 


Simplifying
2(3 + -4a) = -42
(3 * 2 + -4a * 2) = -42
(6 + -8a) = -42

Solving
6 + -8a = -42

Solving for variable 'a'.

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

Add '-6' to each side of the equation.
6 + -6 + -8a = -42 + -6

Combine like terms: 6 + -6 = 0
0 + -8a = -42 + -6
-8a = -42 + -6

Combine like terms: -42 + -6 = -48
-8a = -48

Divide each side by '-8'.
a = 6

Simplifying
a = 6

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