7a-3a=a

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Solution for 7a-3a=a equation: 


Simplifying
7a + -3a = a

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

Solving
4a = a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
4a + -1a = a + -1a

Combine like terms: 4a + -1a = 3a
3a = a + -1a

Combine like terms: a + -1a = 0
3a = 0

Divide each side by '3'.
a = 0

Simplifying
a = 0

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