2y-z-9=0

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Solution for 2y-z-9=0 equation:


Simplifying
2y + -1z + -9 = 0

Reorder the terms:
-9 + 2y + -1z = 0

Solving
-9 + 2y + -1z = 0

Solving for variable 'y'.

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

Add '9' to each side of the equation.
-9 + 2y + 9 + -1z = 0 + 9

Reorder the terms:
-9 + 9 + 2y + -1z = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 2y + -1z = 0 + 9
2y + -1z = 0 + 9

Combine like terms: 0 + 9 = 9
2y + -1z = 9

Add 'z' to each side of the equation.
2y + -1z + z = 9 + z

Combine like terms: -1z + z = 0
2y + 0 = 9 + z
2y = 9 + z

Divide each side by '2'.
y = 4.5 + 0.5z

Simplifying
y = 4.5 + 0.5z

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