84=-7(4-8x)

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Solution for 84=-7(4-8x) equation:


Simplifying
84 = -7(4 + -8x)
84 = (4 * -7 + -8x * -7)
84 = (-28 + 56x)

Solving
84 = -28 + 56x

Solving for variable 'x'.

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

Add '-56x' to each side of the equation.
84 + -56x = -28 + 56x + -56x

Combine like terms: 56x + -56x = 0
84 + -56x = -28 + 0
84 + -56x = -28

Add '-84' to each side of the equation.
84 + -84 + -56x = -28 + -84

Combine like terms: 84 + -84 = 0
0 + -56x = -28 + -84
-56x = -28 + -84

Combine like terms: -28 + -84 = -112
-56x = -112

Divide each side by '-56'.
x = 2

Simplifying
x = 2

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