5a+7a=72

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Solution for 5a+7a=72 equation: 


Simplifying
5a + 7a = 72

Combine like terms: 5a + 7a = 12a
12a = 72

Solving
12a = 72

Solving for variable 'a'.

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

Divide each side by '12'.
a = 6

Simplifying
a = 6

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