9a-8a-1=2

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Solution for 9a-8a-1=2 equation: 


Simplifying
9a + -8a + -1 = 2

Reorder the terms:
-1 + 9a + -8a = 2

Combine like terms: 9a + -8a = 1a
-1 + 1a = 2

Solving
-1 + 1a = 2

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 + 1a = 2 + 1

Combine like terms: -1 + 1 = 0
0 + 1a = 2 + 1
1a = 2 + 1

Combine like terms: 2 + 1 = 3
1a = 3

Divide each side by '1'.
a = 3

Simplifying
a = 3

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