a+3a+12a=64

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Solution for a+3a+12a=64 equation: 


Simplifying
a + 3a + 12a = 64

Combine like terms: a + 3a = 4a
4a + 12a = 64

Combine like terms: 4a + 12a = 16a
16a = 64

Solving
16a = 64

Solving for variable 'a'.

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

Divide each side by '16'.
a = 4

Simplifying
a = 4

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