1A*A=9A

Solution for 1A*A=9A equation:

Simplifying
1A * A = 9A

Multiply A * A
1A2 = 9A

Solving
1A2 = 9A

Solving for variable 'A'.

Reorder the terms:
-9A + 1A2 = 9A + -9A

Combine like terms: 9A + -9A = 0
-9A + 1A2 = 0

Factor out the Greatest Common Factor (GCF), 'A'.
A(-9 + A) = 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 '(-9 + A)' equal to zero and attempt to solve:

Simplifying
-9 + A = 0

Solving
-9 + A = 0

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

Add '9' to each side of the equation.
-9 + 9 + A = 0 + 9

Combine like terms: -9 + 9 = 0
0 + A = 0 + 9
A = 0 + 9

Combine like terms: 0 + 9 = 9
A = 9

Simplifying
A = 9
Solution
A = {0, 9}