X+3y+2*z=-21

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Solution for X+3y+2*z=-21 equation:


Simplifying
X + 3y + 2z = -21

Solving
X + 3y + 2z = -21

Solving for variable 'X'.

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

Add '-3y' to each side of the equation.
X + 3y + -3y + 2z = -21 + -3y

Combine like terms: 3y + -3y = 0
X + 0 + 2z = -21 + -3y
X + 2z = -21 + -3y

Add '-2z' to each side of the equation.
X + 2z + -2z = -21 + -3y + -2z

Combine like terms: 2z + -2z = 0
X + 0 = -21 + -3y + -2z
X = -21 + -3y + -2z

Simplifying
X = -21 + -3y + -2z

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