(15*40)+(15*1.5*5)=x

Solution for (15*40)+(15*1.5*5)=x equation:

Simplifying
(15 * 40) + (15 * 1.5 * 5) = x

Multiply 15 * 40
(600) + (15 * 1.5 * 5) = x
600 + (15 * 1.5 * 5) = x

Multiply 15 * 1.5
600 + (22.5 * 5) = x

Multiply 22.5 * 5
600 + (112.5) = x
600 + 112.5 = x

Combine like terms: 600 + 112.5 = 712.5
712.5 = x

Solving
712.5 = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
712.5 + -1x = x + -1x

Combine like terms: x + -1x = 0
712.5 + -1x = 0

Add '-712.5' to each side of the equation.
712.5 + -712.5 + -1x = 0 + -712.5

Combine like terms: 712.5 + -712.5 = 0.0
0.0 + -1x = 0 + -712.5
-1x = 0 + -712.5

Combine like terms: 0 + -712.5 = -712.5
-1x = -712.5

Divide each side by '-1'.
x = 712.5

Simplifying
x = 712.5