7a-3a=16

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Solution for 7a-3a=16 equation: 


Simplifying
7a + -3a = 16

Combine like terms: 7a + -3a = 4a
4a = 16

Solving
4a = 16

Solving for variable 'a'.

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

Divide each side by '4'.
a = 4

Simplifying
a = 4

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