7a-3a+2a-a=16

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Solution for 7a-3a+2a-a=16 equation: 


Simplifying
7a + -3a + 2a + -1a = 16

Combine like terms: 7a + -3a = 4a
4a + 2a + -1a = 16

Combine like terms: 4a + 2a = 6a
6a + -1a = 16

Combine like terms: 6a + -1a = 5a
5a = 16

Solving
5a = 16

Solving for variable 'a'.

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

Divide each side by '5'.
a = 3.2

Simplifying
a = 3.2

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