100=-10(40x-80)-40x

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Solution for 100=-10(40x-80)-40x equation:


Simplifying
100 = -10(40x + -80) + -40x

Reorder the terms:
100 = -10(-80 + 40x) + -40x
100 = (-80 * -10 + 40x * -10) + -40x
100 = (800 + -400x) + -40x

Combine like terms: -400x + -40x = -440x
100 = 800 + -440x

Solving
100 = 800 + -440x

Solving for variable 'x'.

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

Add '440x' to each side of the equation.
100 + 440x = 800 + -440x + 440x

Combine like terms: -440x + 440x = 0
100 + 440x = 800 + 0
100 + 440x = 800

Add '-100' to each side of the equation.
100 + -100 + 440x = 800 + -100

Combine like terms: 100 + -100 = 0
0 + 440x = 800 + -100
440x = 800 + -100

Combine like terms: 800 + -100 = 700
440x = 700

Divide each side by '440'.
x = 1.590909091

Simplifying
x = 1.590909091

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