a+9=1

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Solution for a+9=1 equation: 


Simplifying
a + 9 = 1

Reorder the terms:
9 + a = 1

Solving
9 + a = 1

Solving for variable 'a'.

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

Add '-9' to each side of the equation.
9 + -9 + a = 1 + -9

Combine like terms: 9 + -9 = 0
0 + a = 1 + -9
a = 1 + -9

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

Simplifying
a = -8

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