3a-7a=

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Solution for 3a-7a= equation: 


Simplifying
3a + -7a = 0

Combine like terms: 3a + -7a = -4a
-4a = 0

Solving
-4a = 0

Solving for variable 'a'.

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

Divide each side by '-4'.
a = 0

Simplifying
a = 0

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