-2(1+3a)-6(1-3a)=40

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Solution for -2(1+3a)-6(1-3a)=40 equation:


Simplifying
-2(1 + 3a) + -6(1 + -3a) = 40
(1 * -2 + 3a * -2) + -6(1 + -3a) = 40
(-2 + -6a) + -6(1 + -3a) = 40
-2 + -6a + (1 * -6 + -3a * -6) = 40
-2 + -6a + (-6 + 18a) = 40

Reorder the terms:
-2 + -6 + -6a + 18a = 40

Combine like terms: -2 + -6 = -8
-8 + -6a + 18a = 40

Combine like terms: -6a + 18a = 12a
-8 + 12a = 40

Solving
-8 + 12a = 40

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 + 12a = 40 + 8

Combine like terms: -8 + 8 = 0
0 + 12a = 40 + 8
12a = 40 + 8

Combine like terms: 40 + 8 = 48
12a = 48

Divide each side by '12'.
a = 4

Simplifying
a = 4

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