What is the answer to 1/3 (3z-9)=15 ?

The answer to 1/3 (3z-9)=15 is z=18

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1/3 (3z-9)=15

\frac{1}{3} (3 z - 9) = 15

z = 18

Solution steps

\frac{1}{3} (3 z - 9) = 15

Multiply both sides by

3

3 z - 9 = 45

Move

9

to the right side

3 z = 54

Divide both sides by

3

z = 18

(3 x + 9) - x = 12

6 (n - 1) = 4 (n + 2) - n

\frac{y}{4} = 8

\frac{1}{2} (6 x - 4) = 4 x - 9

- 3 k + 24 - 5 = 23 + k