9(5-9z)=-z

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Solution for 9(5-9z)=-z equation:


Simplifying
9(5 + -9z) = -1z
(5 * 9 + -9z * 9) = -1z
(45 + -81z) = -1z

Solving
45 + -81z = -1z

Solving for variable 'z'.

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

Add 'z' to each side of the equation.
45 + -81z + z = -1z + z

Combine like terms: -81z + z = -80z
45 + -80z = -1z + z

Combine like terms: -1z + z = 0
45 + -80z = 0

Add '-45' to each side of the equation.
45 + -45 + -80z = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -80z = 0 + -45
-80z = 0 + -45

Combine like terms: 0 + -45 = -45
-80z = -45

Divide each side by '-80'.
z = 0.5625

Simplifying
z = 0.5625

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