9a-a-7a=7

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Solution for 9a-a-7a=7 equation: 


Simplifying
9a + -1a + -7a = 7

Combine like terms: 9a + -1a = 8a
8a + -7a = 7

Combine like terms: 8a + -7a = 1a
1a = 7

Solving
1a = 7

Solving for variable 'a'.

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

Divide each side by '1'.
a = 7

Simplifying
a = 7

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