a-2(4a-6)-3=-40

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Solution for a-2(4a-6)-3=-40 equation:


Simplifying
a + -2(4a + -6) + -3 = -40

Reorder the terms:
a + -2(-6 + 4a) + -3 = -40
a + (-6 * -2 + 4a * -2) + -3 = -40
a + (12 + -8a) + -3 = -40

Reorder the terms:
12 + -3 + a + -8a = -40

Combine like terms: 12 + -3 = 9
9 + a + -8a = -40

Combine like terms: a + -8a = -7a
9 + -7a = -40

Solving
9 + -7a = -40

Solving for variable 'a'.

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

Add '-9' to each side of the equation.
9 + -9 + -7a = -40 + -9

Combine like terms: 9 + -9 = 0
0 + -7a = -40 + -9
-7a = -40 + -9

Combine like terms: -40 + -9 = -49
-7a = -49

Divide each side by '-7'.
a = 7

Simplifying
a = 7

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