2-(X-7)=8-4(X+5)

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Solution for 2-(X-7)=8-4(X+5) equation:


Simplifying
2 + -1(X + -7) = 8 + -4(X + 5)

Reorder the terms:
2 + -1(-7 + X) = 8 + -4(X + 5)
2 + (-7 * -1 + X * -1) = 8 + -4(X + 5)
2 + (7 + -1X) = 8 + -4(X + 5)

Combine like terms: 2 + 7 = 9
9 + -1X = 8 + -4(X + 5)

Reorder the terms:
9 + -1X = 8 + -4(5 + X)
9 + -1X = 8 + (5 * -4 + X * -4)
9 + -1X = 8 + (-20 + -4X)

Combine like terms: 8 + -20 = -12
9 + -1X = -12 + -4X

Solving
9 + -1X = -12 + -4X

Solving for variable 'X'.

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

Add '4X' to each side of the equation.
9 + -1X + 4X = -12 + -4X + 4X

Combine like terms: -1X + 4X = 3X
9 + 3X = -12 + -4X + 4X

Combine like terms: -4X + 4X = 0
9 + 3X = -12 + 0
9 + 3X = -12

Add '-9' to each side of the equation.
9 + -9 + 3X = -12 + -9

Combine like terms: 9 + -9 = 0
0 + 3X = -12 + -9
3X = -12 + -9

Combine like terms: -12 + -9 = -21
3X = -21

Divide each side by '3'.
X = -7

Simplifying
X = -7

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