a+2a+4a=56

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Solution for a+2a+4a=56 equation: 


Simplifying
a + 2a + 4a = 56

Combine like terms: a + 2a = 3a
3a + 4a = 56

Combine like terms: 3a + 4a = 7a
7a = 56

Solving
7a = 56

Solving for variable 'a'.

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

Divide each side by '7'.
a = 8

Simplifying
a = 8

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