99+a=100

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Solution for 99+a=100 equation: 


Simplifying
99 + a = 100

Solving
99 + a = 100

Solving for variable 'a'.

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

Add '-99' to each side of the equation.
99 + -99 + a = 100 + -99

Combine like terms: 99 + -99 = 0
0 + a = 100 + -99
a = 100 + -99

Combine like terms: 100 + -99 = 1
a = 1

Simplifying
a = 1

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