3x-12y+21z=

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Solution for 3x-12y+21z= equation:


Simplifying
3x + -12y + 21z = 0

Solving
3x + -12y + 21z = 0

Solving for variable 'x'.

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

Add '12y' to each side of the equation.
3x + -12y + 12y + 21z = 0 + 12y

Combine like terms: -12y + 12y = 0
3x + 0 + 21z = 0 + 12y
3x + 21z = 0 + 12y
Remove the zero:
3x + 21z = 12y

Add '-21z' to each side of the equation.
3x + 21z + -21z = 12y + -21z

Combine like terms: 21z + -21z = 0
3x + 0 = 12y + -21z
3x = 12y + -21z

Divide each side by '3'.
x = 4y + -7z

Simplifying
x = 4y + -7z

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