Benjamin solved the equation 3 + x over 2 = 10 and justified each step as shown.

Identify Benjamin's error and fix his mistake

Step:

3 + x/2 = 10

X/2 = 7

X = 14

Justification:

Given

Multiplication Property of Equality

Subtraction Property of Equality

The method of solving this equation looks fine to me and the answer is correct since 3 + x/2=10 is x/2=10-3 and so x/2 = 7 and so x = 14 as shown and checking, then subsituting 14 for x then x/2=7 = 10-3 so therefore it is fine the way it is.