-3a(2ab+7b)=

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Solution for -3a(2ab+7b)= equation: 


Simplifying
-3a(2ab + 7b) = 0
(2ab * -3a + 7b * -3a) = 0

Reorder the terms:
(-21ab + -6a2b) = 0
(-21ab + -6a2b) = 0

Solving
-21ab + -6a2b = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '-3ab'.
-3ab(7 + 2a) = 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 + 2a)' equal to zero and attempt to solve:

Simplifying
7 + 2a = 0

Solving
7 + 2a = 0

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

Add '-7' to each side of the equation.
7 + -7 + 2a = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 2a = 0 + -7
2a = 0 + -7

Combine like terms: 0 + -7 = -7
2a = -7

Divide each side by '2'.
a = -3.5

Simplifying
a = -3.5
Solution
a = {-3.5}

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