-9ab(5a-8b-9)=

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Solution for -9ab(5a-8b-9)= equation: 


Simplifying
-9ab(5a + -8b + -9) = 0

Reorder the terms:
-9ab(-9 + 5a + -8b) = 0
(-9 * -9ab + 5a * -9ab + -8b * -9ab) = 0

Reorder the terms:
(81ab + 72ab2 + -45a2b) = 0
(81ab + 72ab2 + -45a2b) = 0

Solving
81ab + 72ab2 + -45a2b = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '9ab'.
9ab(9 + 8b + -5a) = 0

Ignore the factor 9.

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 '(9 + 8b + -5a)' equal to zero and attempt to solve:

Simplifying
9 + 8b + -5a = 0

Reorder the terms:
9 + -5a + 8b = 0

Solving
9 + -5a + 8b = 0

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

Add '-9' to each side of the equation.
9 + -5a + -9 + 8b = 0 + -9

Reorder the terms:
9 + -9 + -5a + 8b = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -5a + 8b = 0 + -9
-5a + 8b = 0 + -9

Combine like terms: 0 + -9 = -9
-5a + 8b = -9

Add '-8b' to each side of the equation.
-5a + 8b + -8b = -9 + -8b

Combine like terms: 8b + -8b = 0
-5a + 0 = -9 + -8b
-5a = -9 + -8b

Divide each side by '-5'.
a = 1.8 + 1.6b

Simplifying
a = 1.8 + 1.6b
Solution
a = {1.8 + 1.6b}

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