-7a=a-8

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Solution for -7a=a-8 equation: 


Simplifying
-7a = a + -8

Reorder the terms:
-7a = -8 + a

Solving
-7a = -8 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-7a + -1a = -8 + a + -1a

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

Combine like terms: a + -1a = 0
-8a = -8 + 0
-8a = -8

Divide each side by '-8'.
a = 1

Simplifying
a = 1

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