a-10=-1

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Solution for a-10=-1 equation: 


Simplifying
a + -10 = -1

Reorder the terms:
-10 + a = -1

Solving
-10 + a = -1

Solving for variable 'a'.

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

Add '10' to each side of the equation.
-10 + 10 + a = -1 + 10

Combine like terms: -10 + 10 = 0
0 + a = -1 + 10
a = -1 + 10

Combine like terms: -1 + 10 = 9
a = 9

Simplifying
a = 9

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