-64=-2x+4(x-21)

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Solution for -64=-2x+4(x-21) equation:


Simplifying
-64 = -2x + 4(x + -21)

Reorder the terms:
-64 = -2x + 4(-21 + x)
-64 = -2x + (-21 * 4 + x * 4)
-64 = -2x + (-84 + 4x)

Reorder the terms:
-64 = -84 + -2x + 4x

Combine like terms: -2x + 4x = 2x
-64 = -84 + 2x

Solving
-64 = -84 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-64 + -2x = -84 + 2x + -2x

Combine like terms: 2x + -2x = 0
-64 + -2x = -84 + 0
-64 + -2x = -84

Add '64' to each side of the equation.
-64 + 64 + -2x = -84 + 64

Combine like terms: -64 + 64 = 0
0 + -2x = -84 + 64
-2x = -84 + 64

Combine like terms: -84 + 64 = -20
-2x = -20

Divide each side by '-2'.
x = 10

Simplifying
x = 10

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