The error was made in line 2. Instead of subtracting 6 from 6 and 4n from 50, it should have subtracted 6 from both sides of the equation. The correct line 2 should be:
6 - 4n = 44
Read the following prompt and type your response in the space provided.
Look at the problem and work shown. In which line was an error made and what should have been done differently?
Six less than 4 times a number is 50. What is the number?
6 – 4n = 50 (line 1)
6 – 6 – 4n = 50 – 6 (line 2)
–4n = 44 (line 3)
–4n÷ –4 = 44÷ –4 (line 4)
n = –11 (line 5)
1 answer
1 answer