3a+7a=12

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Solution for 3a+7a=12 equation: 


Simplifying
3a + 7a = 12

Combine like terms: 3a + 7a = 10a
10a = 12

Solving
10a = 12

Solving for variable 'a'.

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

Divide each side by '10'.
a = 1.2

Simplifying
a = 1.2

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