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Question

# Use the following steps. Choose a number. Multiply by 5. Add 2. Multiply by 3. Subtract 8. a. Choose the number 4. What ending number did you get? b. Choose the variable $x$. What ending expression did you get?

Solution

Verified
Step 1
1 of 3

b.

Let the number be $x$, then after multiplying by 5 the expression becomes:

$5x$

$5x+2$

After multiplying by 3, it becomes:

$3(5x+2)$

After subtracting 8, it becomes:

$3(5x+2)-8$

Simplify this expression, therefore:

$=15x+6-8$

$=15x-2$

The expression simplifies to $15x-2$. This is the ending expression.

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