-(-7y-9z-9)=

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Solution for -(-7y-9z-9)= equation:


Simplifying
-1(-7y + -9z + -9) = 0

Reorder the terms:
-1(-9 + -7y + -9z) = 0
(-9 * -1 + -7y * -1 + -9z * -1) = 0
(9 + 7y + 9z) = 0

Solving
9 + 7y + 9z = 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 + 7y + -9 + 9z = 0 + -9

Reorder the terms:
9 + -9 + 7y + 9z = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 7y + 9z = 0 + -9
7y + 9z = 0 + -9

Combine like terms: 0 + -9 = -9
7y + 9z = -9

Add '-9z' to each side of the equation.
7y + 9z + -9z = -9 + -9z

Combine like terms: 9z + -9z = 0
7y + 0 = -9 + -9z
7y = -9 + -9z

Divide each side by '7'.
y = -1.285714286 + -1.285714286z

Simplifying
y = -1.285714286 + -1.285714286z

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