4000=40x+(1.5x*10)

Solution for 4000=40x+(1.5x*10) equation:

Simplifying
4000 = 40x + (1.5x * 10)

Reorder the terms for easier multiplication:
4000 = 40x + (1.5 * 10x)

Multiply 1.5 * 10
4000 = 40x + (15x)

Combine like terms: 40x + (15x) = 55x
4000 = 55x

Solving
4000 = 55x

Solving for variable 'x'.

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

Add '-55x' to each side of the equation.
4000 + -55x = 55x + -55x

Combine like terms: 55x + -55x = 0
4000 + -55x = 0

Add '-4000' to each side of the equation.
4000 + -4000 + -55x = 0 + -4000

Combine like terms: 4000 + -4000 = 0
0 + -55x = 0 + -4000
-55x = 0 + -4000

Combine like terms: 0 + -4000 = -4000
-55x = -4000

Divide each side by '-55'.
x = 72.72727273

Simplifying
x = 72.72727273