A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
What value of x makes the equation true?
–4.9 = –5.7 + x
A.
x = –10.6
B.
x = –0.8
C.
x = 0.8
D.
x = 10.6
anonymous
 one year ago
What value of x makes the equation true? –4.9 = –5.7 + x A. x = –10.6 B. x = –0.8 C. x = 0.8 D. x = 10.6

This Question is Closed

jacobciezki
 one year ago
Best ResponseYou've already chosen the best response.1There's two ways to do this, depending on which math you are taking. The first or 'elementary school' way would be to plug in all of the choices. There's also the 'algebra' way, which would be to find out what x is without using the choices. 4.9 = 5.7 + x Add* (not subtract) the 5.7 to both sides 0.8 = x And there you have it! The answer is C, but now you know how to find it when you don't have choices. *If you were wondering why you add 5.7, it's because it cancels out the 5.7  one of the most common mistakes is subtracting it, but you see why that's wrong, right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.04.9+5,7=x; 0.8=x (C)
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.