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The number p goes through Step 1 and then Step 2 of the machine. Which expression gives what comes out?

Class 6Forming ExpressionsAlgebra

A $3 p + 4$
B $3 (p + 4)$
C $p + 4 \times 3$
D $4 p + 3$

Step-by-Step Solution

Step 1 gives

p + 4

. Step 2 multiplies ALL of that by 3:

3 (p + 4)

. Test:

3 (2 + 4) = 18. (3 p + 4

gives 10 for

p = 2

, not 18.)

Answer: B)

3 (p + 4)

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