84=(4-2x)-8x

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Solution for 84=(4-2x)-8x equation:


Simplifying
84 = (4 + -2x) + -8x

Remove parenthesis around (4 + -2x)
84 = 4 + -2x + -8x

Combine like terms: -2x + -8x = -10x
84 = 4 + -10x

Solving
84 = 4 + -10x

Solving for variable 'x'.

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

Add '10x' to each side of the equation.
84 + 10x = 4 + -10x + 10x

Combine like terms: -10x + 10x = 0
84 + 10x = 4 + 0
84 + 10x = 4

Add '-84' to each side of the equation.
84 + -84 + 10x = 4 + -84

Combine like terms: 84 + -84 = 0
0 + 10x = 4 + -84
10x = 4 + -84

Combine like terms: 4 + -84 = -80
10x = -80

Divide each side by '10'.
x = -8

Simplifying
x = -8

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