2ab+1=0

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Solution for 2ab+1=0 equation: 


Simplifying
2ab + 1 = 0

Reorder the terms:
1 + 2ab = 0

Solving
1 + 2ab = 0

Solving for variable 'a'.

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

Add '-1' to each side of the equation.
1 + -1 + 2ab = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 2ab = 0 + -1
2ab = 0 + -1

Combine like terms: 0 + -1 = -1
2ab = -1

Divide each side by '2b'.
a = -0.5b-1

Simplifying
a = -0.5b-1

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