3999+45a=4499+40a

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Solution for 3999+45a=4499+40a equation: 


Simplifying
3999 + 45a = 4499 + 40a

Solving
3999 + 45a = 4499 + 40a

Solving for variable 'a'.

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

Add '-40a' to each side of the equation.
3999 + 45a + -40a = 4499 + 40a + -40a

Combine like terms: 45a + -40a = 5a
3999 + 5a = 4499 + 40a + -40a

Combine like terms: 40a + -40a = 0
3999 + 5a = 4499 + 0
3999 + 5a = 4499

Add '-3999' to each side of the equation.
3999 + -3999 + 5a = 4499 + -3999

Combine like terms: 3999 + -3999 = 0
0 + 5a = 4499 + -3999
5a = 4499 + -3999

Combine like terms: 4499 + -3999 = 500
5a = 500

Divide each side by '5'.
a = 100

Simplifying
a = 100

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