57=-4(-4x+2)-1

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Solution for 57=-4(-4x+2)-1 equation:


Simplifying
57 = -4(-4x + 2) + -1

Reorder the terms:
57 = -4(2 + -4x) + -1
57 = (2 * -4 + -4x * -4) + -1
57 = (-8 + 16x) + -1

Reorder the terms:
57 = -8 + -1 + 16x

Combine like terms: -8 + -1 = -9
57 = -9 + 16x

Solving
57 = -9 + 16x

Solving for variable 'x'.

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

Add '-16x' to each side of the equation.
57 + -16x = -9 + 16x + -16x

Combine like terms: 16x + -16x = 0
57 + -16x = -9 + 0
57 + -16x = -9

Add '-57' to each side of the equation.
57 + -57 + -16x = -9 + -57

Combine like terms: 57 + -57 = 0
0 + -16x = -9 + -57
-16x = -9 + -57

Combine like terms: -9 + -57 = -66
-16x = -66

Divide each side by '-16'.
x = 4.125

Simplifying
x = 4.125

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