9a-7a=28

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Solution for 9a-7a=28 equation: 


Simplifying
9a + -7a = 28

Combine like terms: 9a + -7a = 2a
2a = 28

Solving
2a = 28

Solving for variable 'a'.

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

Divide each side by '2'.
a = 14

Simplifying
a = 14

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