ab+cd=f

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Solution for ab+cd=f equation: 


Simplifying
ab + cd = f

Solving
ab + cd = f

Solving for variable 'a'.

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

Add '-1cd' to each side of the equation.
ab + cd + -1cd = -1cd + f

Combine like terms: cd + -1cd = 0
ab + 0 = -1cd + f
ab = -1cd + f

Divide each side by 'b'.
a = -1b-1cd + b-1f

Simplifying
a = -1b-1cd + b-1f

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