(-a-5b+4)5ab=

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Solution for (-a-5b+4)5ab= equation: 


Simplifying
(-1a + -5b + 4) * 5ab = 0

Reorder the terms:
(4 + -1a + -5b) * 5ab = 0

Reorder the terms for easier multiplication:
5ab(4 + -1a + -5b) = 0
(4 * 5ab + -1a * 5ab + -5b * 5ab) = 0

Reorder the terms:
(20ab + -25ab2 + -5a2b) = 0
(20ab + -25ab2 + -5a2b) = 0

Solving
20ab + -25ab2 + -5a2b = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '5ab'.
5ab(4 + -5b + -1a) = 0

Ignore the factor 5.

Subproblem 1
Set the factor 'ab' equal to zero and attempt to solve:

Simplifying
ab = 0

Solving
ab = 0

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

Simplifying
ab = 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 '(4 + -5b + -1a)' equal to zero and attempt to solve:

Simplifying
4 + -5b + -1a = 0

Reorder the terms:
4 + -1a + -5b = 0

Solving
4 + -1a + -5b = 0

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

Add '-4' to each side of the equation.
4 + -1a + -4 + -5b = 0 + -4

Reorder the terms:
4 + -4 + -1a + -5b = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -1a + -5b = 0 + -4
-1a + -5b = 0 + -4

Combine like terms: 0 + -4 = -4
-1a + -5b = -4

Add '5b' to each side of the equation.
-1a + -5b + 5b = -4 + 5b

Combine like terms: -5b + 5b = 0
-1a + 0 = -4 + 5b
-1a = -4 + 5b

Divide each side by '-1'.
a = 4 + -5b

Simplifying
a = 4 + -5b
Solution
a = {4 + -5b}

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