400=(x*8)+((x*1.5)*2)

Solution for 400=(x*8)+((x*1.5)*2) equation:

Simplifying
400 = (x * 8) + ((x * 1.5) * 2)

Reorder the terms for easier multiplication:
400 = (8x) + ((x * 1.5) * 2)

Reorder the terms for easier multiplication:
400 = (8x) + ((1.5x) * 2)

Remove parenthesis around (1.5x)
400 = (8x) + (1.5x * 2)

Reorder the terms for easier multiplication:
400 = (8x) + (1.5 * 2x)

Multiply 1.5 * 2
400 = (8x) + (3x)

Combine like terms: (8x) + (3x) = 11x
400 = 11x

Solving
400 = 11x

Solving for variable 'x'.

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

Add '-11x' to each side of the equation.
400 + -11x = 11x + -11x

Combine like terms: 11x + -11x = 0
400 + -11x = 0

Add '-400' to each side of the equation.
400 + -400 + -11x = 0 + -400

Combine like terms: 400 + -400 = 0
0 + -11x = 0 + -400
-11x = 0 + -400

Combine like terms: 0 + -400 = -400
-11x = -400

Divide each side by '-11'.
x = 36.36363636

Simplifying
x = 36.36363636