4mn*5mn=20mn

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Solution for 4mn*5mn=20mn equation:


Simplifying
4mn * 5mn = 20mn

Reorder the terms for easier multiplication:
4 * 5mn * mn = 20mn

Multiply 4 * 5
20mn * mn = 20mn

Multiply mn * mn
20m2n2 = 20mn

Solving
20m2n2 = 20mn

Solving for variable 'm'.

Reorder the terms:
-20mn + 20m2n2 = 20mn + -20mn

Combine like terms: 20mn + -20mn = 0
-20mn + 20m2n2 = 0

Factor out the Greatest Common Factor (GCF), '20mn'.
20mn(-1 + mn) = 0

Ignore the factor 20.

Subproblem 1

Set the factor 'mn' equal to zero and attempt to solve: Simplifying mn = 0 Solving mn = 0 Move all terms containing m to the left, all other terms to the right. Simplifying mn = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(-1 + mn)' equal to zero and attempt to solve: Simplifying -1 + mn = 0 Solving -1 + mn = 0 Move all terms containing m to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + mn = 0 + 1 Combine like terms: -1 + 1 = 0 0 + mn = 0 + 1 mn = 0 + 1 Combine like terms: 0 + 1 = 1 mn = 1 Divide each side by 'n'. m = n-1 Simplifying m = n-1

Solution

m = {n-1}

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