4(a-2)=72

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Solution for 4(a-2)=72 equation: 


Simplifying
4(a + -2) = 72

Reorder the terms:
4(-2 + a) = 72
(-2 * 4 + a * 4) = 72
(-8 + 4a) = 72

Solving
-8 + 4a = 72

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 + 4a = 72 + 8

Combine like terms: -8 + 8 = 0
0 + 4a = 72 + 8
4a = 72 + 8

Combine like terms: 72 + 8 = 80
4a = 80

Divide each side by '4'.
a = 20

Simplifying
a = 20

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