2(X+4)=(X-1)

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


Simplifying
2(X + 4) = (X + -1)

Reorder the terms:
2(4 + X) = (X + -1)
(4 * 2 + X * 2) = (X + -1)
(8 + 2X) = (X + -1)

Reorder the terms:
8 + 2X = (-1 + X)

Remove parenthesis around (-1 + X)
8 + 2X = -1 + X

Solving
8 + 2X = -1 + X

Solving for variable 'X'.

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

Add '-1X' to each side of the equation.
8 + 2X + -1X = -1 + X + -1X

Combine like terms: 2X + -1X = 1X
8 + 1X = -1 + X + -1X

Combine like terms: X + -1X = 0
8 + 1X = -1 + 0
8 + 1X = -1

Add '-8' to each side of the equation.
8 + -8 + 1X = -1 + -8

Combine like terms: 8 + -8 = 0
0 + 1X = -1 + -8
1X = -1 + -8

Combine like terms: -1 + -8 = -9
1X = -9

Divide each side by '1'.
X = -9

Simplifying
X = -9

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