.05(15)(20)=A

Solution for .05(15)(20)=A equation:

Simplifying
0.05(15)(20) = A

Multiply 0.05 * 15
0.75 * 20 = A

Multiply 0.75 * 20
15 = A

Solving
15 = A

Solving for variable 'A'.

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

Add '-1A' to each side of the equation.
15 + -1A = A + -1A

Combine like terms: A + -1A = 0
15 + -1A = 0

Add '-15' to each side of the equation.
15 + -15 + -1A = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -1A = 0 + -15
-1A = 0 + -15

Combine like terms: 0 + -15 = -15
-1A = -15

Divide each side by '-1'.
A = 15

Simplifying
A = 15