28=-4x+4(-x-9)

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Solution for 28=-4x+4(-x-9) equation:


Simplifying
28 = -4x + 4(-1x + -9)

Reorder the terms:
28 = -4x + 4(-9 + -1x)
28 = -4x + (-9 * 4 + -1x * 4)
28 = -4x + (-36 + -4x)

Reorder the terms:
28 = -36 + -4x + -4x

Combine like terms: -4x + -4x = -8x
28 = -36 + -8x

Solving
28 = -36 + -8x

Solving for variable 'x'.

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

Add '8x' to each side of the equation.
28 + 8x = -36 + -8x + 8x

Combine like terms: -8x + 8x = 0
28 + 8x = -36 + 0
28 + 8x = -36

Add '-28' to each side of the equation.
28 + -28 + 8x = -36 + -28

Combine like terms: 28 + -28 = 0
0 + 8x = -36 + -28
8x = -36 + -28

Combine like terms: -36 + -28 = -64
8x = -64

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

Simplifying
x = -8

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