If x•y=z, which of the following statements is true?

Answer:
B) [tex] \frac{z}{y}= x[/tex]
Step-by-step explanation:
Let's solve for x.
xy=z
Step 1: Divide both sides by y.
xy/y = z/y
x = z/y
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Let's solve for y.
xy=z
Step 1: Divide both sides by x.
xy/x = z/x
y= z/x
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Let's solve for z.
xy=z
Step 1: Flip the equation.
z=xy
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If we look through the options we see only option b is correct, therefore option B is the answer.