(7ab)-(5a)=

Solution for (7ab)-(5a)= equation:

Simplifying
(7ab) + -1(5a) = 0

Remove parenthesis around (5a)
(7ab) + -1 * 5a = 0

Multiply -1 * 5
(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}