4a-2a+a=42

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Solution for 4a-2a+a=42 equation: 


Simplifying
4a + -2a + a = 42

Combine like terms: 4a + -2a = 2a
2a + a = 42

Combine like terms: 2a + a = 3a
3a = 42

Solving
3a = 42

Solving for variable 'a'.

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

Divide each side by '3'.
a = 14

Simplifying
a = 14

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