20mn+5ab-8mn-ab=

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Solution for 20mn+5ab-8mn-ab= equation:


Simplifying
20mn + 5ab + -8mn + -1ab = 0

Reorder the terms:
5ab + -1ab + 20mn + -8mn = 0

Combine like terms: 5ab + -1ab = 4ab
4ab + 20mn + -8mn = 0

Combine like terms: 20mn + -8mn = 12mn
4ab + 12mn = 0

Solving
4ab + 12mn = 0

Solving for variable 'a'.

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

Add '-12mn' to each side of the equation.
4ab + 12mn + -12mn = 0 + -12mn

Combine like terms: 12mn + -12mn = 0
4ab + 0 = 0 + -12mn
4ab = 0 + -12mn
Remove the zero:
4ab = -12mn

Divide each side by '4b'.
a = -3b-1mn

Simplifying
a = -3b-1mn

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