Question

Evaluate each expression if x = 2, y = 7 and z = 123xy – 2z

Answer 1

`18`

Step-by-step explanation

We want to evaluate the expressions for the given values of x, y, and z.

To do this, substitute the given values for the terms in the expressions.

The given expression is:

`3xy-2z`

Therefore, we have that,

`\begin{gathered} 3(2)(7)-2(12) \\ 42-24 \\ \Rightarrow18 \end{gathered}`

That is the answer.