X+21+2x=-12-2x-17

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Solution for X+21+2x=-12-2x-17 equation: 


Simplifying
X + 21 + 2x = -12 + -2x + -17

Reorder the terms:
21 + X + 2x = -12 + -2x + -17

Reorder the terms:
21 + X + 2x = -12 + -17 + -2x

Combine like terms: -12 + -17 = -29
21 + X + 2x = -29 + -2x

Solving
21 + X + 2x = -29 + -2x

Solving for variable 'X'.

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

Add '-21' to each side of the equation.
21 + X + -21 + 2x = -29 + -21 + -2x

Reorder the terms:
21 + -21 + X + 2x = -29 + -21 + -2x

Combine like terms: 21 + -21 = 0
0 + X + 2x = -29 + -21 + -2x
X + 2x = -29 + -21 + -2x

Combine like terms: -29 + -21 = -50
X + 2x = -50 + -2x

Add '-2x' to each side of the equation.
X + 2x + -2x = -50 + -2x + -2x

Combine like terms: 2x + -2x = 0
X + 0 = -50 + -2x + -2x
X = -50 + -2x + -2x

Combine like terms: -2x + -2x = -4x
X = -50 + -4x

Simplifying
X = -50 + -4x

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