ab+84=39

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Solution for ab+84=39 equation: 


Simplifying
ab + 84 = 39

Reorder the terms:
84 + ab = 39

Solving
84 + ab = 39

Solving for variable 'a'.

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

Add '-84' to each side of the equation.
84 + -84 + ab = 39 + -84

Combine like terms: 84 + -84 = 0
0 + ab = 39 + -84
ab = 39 + -84

Combine like terms: 39 + -84 = -45
ab = -45

Divide each side by 'b'.
a = -45b-1

Simplifying
a = -45b-1

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