-1+a=8

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Solution for -1+a=8 equation: 


Simplifying
-1 + a = 8

Solving
-1 + a = 8

Solving for variable 'a'.

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

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

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

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

Simplifying
a = 9

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