Devon's teacher requires that students show each step in solving a problem. Devon wrote the following when solving the equation x - 7 = 20:
x - 7 = 20
x - 7 = 20 + 7
x = 27
The teacher said that Devon's work was not shown correctly. Why?
A) Devon's final answer should be 13
B) Devon should have shown that he added 7 to both sides
C) Devon should have shown that he subtracted 7 from both sides
D) Devon should have shown that he added 7 to the left side only
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Devon's teacher requires that students show each step in solving a problem. Devon wrote the following when solving the equation x - 7 = 20: ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
Write a rule in words and as an algebraic expression to model the relationship in each table The local video store charges a monthy membership fee of $5 and $2.25 per video. Video (v) l cost (c) 1 l $7.25 2 l $9.50 3 l $11.75
Answers (1)
Solve the system of equations by substitution. 4x-3y=18 x+2y=-1
Answers (1)
A number cube us rolled 450 times. The number 3 comes up 67 times. (a) What is the theoretical probability of rolling a 3? Write your answer as a fraction in simplest form.
Answers (1)
I am operations that undo each other like multiplication and divison
Answers (1)
A flower garden has 12 sunflowers for every 45 irises. Write another ratio with the same constant of proportionality. Explain how you found this ratio.
Answers (1)
New Questions in Mathematics
Fill in the missing terms of the following sequence 12,_,_, - 3, _, - 13
Answers (2)
Factor out coefficient of 3/8d+3/4
Answers (1)
Terrance trains at a rate of 6 miles every half hour and Jesse trains at a rate of 2 miles every 15 minutes
Answers (1)
Find the magnitude of the vector from the origin to (8. - 6) and write the vector as the sum of unit vectors. 1. 12, 87 + 67 c. 12. 87-67
Answers (1)
Evaluate the following expression b=3 c=-3 (b-c) (c+2)
Answers (1)