4(2a-4)=40

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


Simplifying
4(2a + -4) = 40

Reorder the terms:
4(-4 + 2a) = 40
(-4 * 4 + 2a * 4) = 40
(-16 + 8a) = 40

Solving
-16 + 8a = 40

Solving for variable 'a'.

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

Add '16' to each side of the equation.
-16 + 16 + 8a = 40 + 16

Combine like terms: -16 + 16 = 0
0 + 8a = 40 + 16
8a = 40 + 16

Combine like terms: 40 + 16 = 56
8a = 56

Divide each side by '8'.
a = 7

Simplifying
a = 7

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