Question

Marjorie evaluated the expression 3x + 2 for x = 5 as shown:

3x + 2 = 35 + 2 = 37

What was Marjorie’s mistake?

What is the correct value of 3x + 2 for x = 5?

Answer 1

Answer:

for x=5,3x =3×5 = 15,not 35 which is given in the solution.so,3x+2 = 15+2 =17 would be the answer,not 37.