81x-y-9(9x-4+2z)=

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Solution for 81x-y-9(9x-4+2z)= equation: 


Simplifying
81x + -1y + -9(9x + -4 + 2z) = 0

Reorder the terms:
81x + -1y + -9(-4 + 9x + 2z) = 0
81x + -1y + (-4 * -9 + 9x * -9 + 2z * -9) = 0
81x + -1y + (36 + -81x + -18z) = 0

Reorder the terms:
36 + 81x + -81x + -1y + -18z = 0

Combine like terms: 81x + -81x = 0
36 + 0 + -1y + -18z = 0
36 + -1y + -18z = 0

Solving
36 + -1y + -18z = 0

Solving for variable 'y'.

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

Add '-36' to each side of the equation.
36 + -1y + -36 + -18z = 0 + -36

Reorder the terms:
36 + -36 + -1y + -18z = 0 + -36

Combine like terms: 36 + -36 = 0
0 + -1y + -18z = 0 + -36
-1y + -18z = 0 + -36

Combine like terms: 0 + -36 = -36
-1y + -18z = -36

Add '18z' to each side of the equation.
-1y + -18z + 18z = -36 + 18z

Combine like terms: -18z + 18z = 0
-1y + 0 = -36 + 18z
-1y = -36 + 18z

Divide each side by '-1'.
y = 36 + -18z

Simplifying
y = 36 + -18z

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