x+3y-z=-4

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Solution for x+3y-z=-4 equation:


Simplifying
x + 3y + -1z = -4

Solving
x + 3y + -1z = -4

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 + -1z = -4 + -3y

Combine like terms: 3y + -3y = 0
x + 0 + -1z = -4 + -3y
x + -1z = -4 + -3y

Add 'z' to each side of the equation.
x + -1z + z = -4 + -3y + z

Combine like terms: -1z + z = 0
x + 0 = -4 + -3y + z
x = -4 + -3y + z

Simplifying
x = -4 + -3y + z

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