-81=3-7(-8x+4)

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Solution for -81=3-7(-8x+4) equation:


Simplifying
-81 = 3 + -7(-8x + 4)

Reorder the terms:
-81 = 3 + -7(4 + -8x)
-81 = 3 + (4 * -7 + -8x * -7)
-81 = 3 + (-28 + 56x)

Combine like terms: 3 + -28 = -25
-81 = -25 + 56x

Solving
-81 = -25 + 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.
-81 + -56x = -25 + 56x + -56x

Combine like terms: 56x + -56x = 0
-81 + -56x = -25 + 0
-81 + -56x = -25

Add '81' to each side of the equation.
-81 + 81 + -56x = -25 + 81

Combine like terms: -81 + 81 = 0
0 + -56x = -25 + 81
-56x = -25 + 81

Combine like terms: -25 + 81 = 56
-56x = 56

Divide each side by '-56'.
x = -1

Simplifying
x = -1

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