6a-2a=-42

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Solution for 6a-2a=-42 equation: 


Simplifying
6a + -2a = -42

Combine like terms: 6a + -2a = 4a
4a = -42

Solving
4a = -42

Solving for variable 'a'.

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

Divide each side by '4'.
a = -10.5

Simplifying
a = -10.5

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