7ab+5a=0

Solution for 7ab+5a=0 equation:

Simplifying
7ab + 5a = 0

Reorder the terms:
5a + 7ab = 0

Solving
5a + 7ab = 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(5 + 7b) = 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 '(5 + 7b)' equal to zero and attempt to solve:

Simplifying
5 + 7b = 0

Solving
5 + 7b = 0

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

Add '-5' to each side of the equation.
5 + -5 + 7b = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 7b = 0 + -5
7b = 0 + -5

Combine like terms: 0 + -5 = -5
7b = -5

Add '-7b' to each side of the equation.
7b + -7b = -5 + -7b

Combine like terms: 7b + -7b = 0
0 = -5 + -7b

Simplifying
0 = -5 + -7b

The solution to this equation could not be determined.

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