-8a+7a=28

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Solution for -8a+7a=28 equation: 


Simplifying
-8a + 7a = 28

Combine like terms: -8a + 7a = -1a
-1a = 28

Solving
-1a = 28

Solving for variable 'a'.

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

Divide each side by '-1'.
a = -28

Simplifying
a = -28

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