Top Posters
Since Sunday
New Topic  
asiaarcher asiaarcher
wrote...
Posts: 7
Rep: 0 0
11 years ago
hello

I don't understand how to solve equations like these of graphing when it has A FRACTION so if someone could show me how to solve this problem and how DO YOU multiply a fraction in a graphing linear equation I WOULD APPRECIATE IT!!

Consider the equation 2x+3y=12.Find the value of x  when (x,11/3) that makes the given ordered pair a solution to the equation??

Solve 2x + 3 (11/3) = 12

please help and show me how to multiply fractions in these type of problems thank you
Read 1037 times
4 Replies
Replies
wrote...
11 years ago
2x + 3 (11/3) = 12
first you multiply the 3 into 11/3 and you'll now have
2x + 11 = 12
next subtract 11 from both sides
2x = 1
finally divide by 2 in both sides
x = 1/2 or .5
Answer accepted by topic starter
Fireman 2.Fireman 2.
wrote...
Posts: 172
Rep: 1 0
11 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

wrote...
11 years ago
Simplify by solving 3(11/3) = 11 to get
2x + 11 = 12

Now you can solve for x by first subtracting 11 from both sides of the = to get
2x = 1

Finally divide both sides by 2 to get
x = 1/2
wrote...
11 years ago
2x + 3(11/3) = 12

3/1 * 11/3 = 33/3  When multiplying, just multiply across, numerator to numerator and denominator to denominator.

(I know I put a 1 under the 3, all whole numbers have a 1 under them) (example : 3/1 = 3)  or ( lets say 5 in fraction form is 5/1 )   (Another fraction example 2/5 * 3/4 mult across and you get 2 * 3 = 6 and 5 * 4 = 20   answer 6/20 then, simplify and get 3/10)

Now simplify 33/3 = 11

2x + 11 = 12  Now subtract 11 from both sides. and you get 2x = 1

2x = 1  Now divide 2 on both sides  and you get  x = 1/2

ordered pair is (1/2 , 11/3)
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1261 People Browsing
Related Images
  
 249
  
 227
  
 116
Your Opinion
Do you believe in global warming?
Votes: 370

Previous poll results: What's your favorite math subject?