5a+2a-4a=42

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Solution for 5a+2a-4a=42 equation: 


Simplifying
5a + 2a + -4a = 42

Combine like terms: 5a + 2a = 7a
7a + -4a = 42

Combine like terms: 7a + -4a = 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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