12=x+(1-.30)(x-4)(.25)

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Solution for 12=x+(1-.30)(x-4)(.25) equation:


Simplifying
12 = x + (1 + -0.30)(x + -4)(0.25)

Combine like terms: 1 + -0.30 = 0.7
12 = x + (0.7)(x + -4)(0.25)

Reorder the terms:
12 = x + 0.7(-4 + x)(0.25)

Reorder the terms for easier multiplication:
12 = x + 0.7 * 0.25(-4 + x)

Multiply 0.7 * 0.25
12 = x + 0.175(-4 + x)
12 = x + (-4 * 0.175 + x * 0.175)
12 = x + (-0.7 + 0.175x)

Reorder the terms:
12 = -0.7 + x + 0.175x

Combine like terms: x + 0.175x = 1.175x
12 = -0.7 + 1.175x

Solving
12 = -0.7 + 1.175x

Solving for variable 'x'.

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

Add '-1.175x' to each side of the equation.
12 + -1.175x = -0.7 + 1.175x + -1.175x

Combine like terms: 1.175x + -1.175x = 0.000
12 + -1.175x = -0.7 + 0.000
12 + -1.175x = -0.7

Add '-12' to each side of the equation.
12 + -12 + -1.175x = -0.7 + -12

Combine like terms: 12 + -12 = 0
0 + -1.175x = -0.7 + -12
-1.175x = -0.7 + -12

Combine like terms: -0.7 + -12 = -12.7
-1.175x = -12.7

Divide each side by '-1.175'.
x = 10.80851064

Simplifying
x = 10.80851064

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