7a-5b*3ab=

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Solution for 7a-5b*3ab= equation: 


Simplifying
7a + -5b * 3ab = 0

Reorder the terms for easier multiplication:
7a + -5 * 3b * ab = 0

Multiply -5 * 3
7a + -15b * ab = 0

Multiply b * ab
7a + -15ab2 = 0

Solving
7a + -15ab2 = 0

Solving for variable 'a'.

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

Factor out the Greatest Common Factor (GCF), 'a'.
a(7 + -15b2) = 0


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

Simplifying
a = 0

Solving
a = 0

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

Simplifying
a = 0

Subproblem 2
Set the factor '(7 + -15b2)' equal to zero and attempt to solve:

Simplifying
7 + -15b2 = 0

Solving
7 + -15b2 = 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 + -15b2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -15b2 = 0 + -7
-15b2 = 0 + -7

Combine like terms: 0 + -7 = -7
-15b2 = -7

Add '15b2' to each side of the equation.
-15b2 + 15b2 = -7 + 15b2

Combine like terms: -15b2 + 15b2 = 0
0 = -7 + 15b2

Simplifying
0 = -7 + 15b2

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.
Solution
a = {0}

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