-3ab(7a-4b-7)=

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Solution for -3ab(7a-4b-7)= equation: 


Simplifying
-3ab(7a + -4b + -7) = 0

Reorder the terms:
-3ab(-7 + 7a + -4b) = 0
(-7 * -3ab + 7a * -3ab + -4b * -3ab) = 0

Reorder the terms:
(21ab + 12ab2 + -21a2b) = 0
(21ab + 12ab2 + -21a2b) = 0

Solving
21ab + 12ab2 + -21a2b = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '3ab'.
3ab(7 + 4b + -7a) = 0

Ignore the factor 3.

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 '(7 + 4b + -7a)' equal to zero and attempt to solve:

Simplifying
7 + 4b + -7a = 0

Reorder the terms:
7 + -7a + 4b = 0

Solving
7 + -7a + 4b = 0

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

Add '-7' to each side of the equation.
7 + -7a + -7 + 4b = 0 + -7

Reorder the terms:
7 + -7 + -7a + 4b = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -7a + 4b = 0 + -7
-7a + 4b = 0 + -7

Combine like terms: 0 + -7 = -7
-7a + 4b = -7

Add '-4b' to each side of the equation.
-7a + 4b + -4b = -7 + -4b

Combine like terms: 4b + -4b = 0
-7a + 0 = -7 + -4b
-7a = -7 + -4b

Divide each side by '-7'.
a = 1 + 0.5714285714b

Simplifying
a = 1 + 0.5714285714b
Solution
a = {1 + 0.5714285714b}

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