8-1a=17

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Solution for 8-1a=17 equation: 


Simplifying
8 + -1a = 17

Solving
8 + -1a = 17

Solving for variable 'a'.

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

Add '-8' to each side of the equation.
8 + -8 + -1a = 17 + -8

Combine like terms: 8 + -8 = 0
0 + -1a = 17 + -8
-1a = 17 + -8

Combine like terms: 17 + -8 = 9
-1a = 9

Divide each side by '-1'.
a = -9

Simplifying
a = -9

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