SOLUTION: My problem is 43>-4y+11
32>-4y
y<-8
but when I check the answer in the problem it doesn't work.
example: 43>-4(-9)+11
43>36+1
Algebra ->
Inequalities
-> SOLUTION: My problem is 43>-4y+11
32>-4y
y<-8
but when I check the answer in the problem it doesn't work.
example: 43>-4(-9)+11
43>36+1
Log On
Question 780320: My problem is 43>-4y+11
32>-4y
y<-8
but when I check the answer in the problem it doesn't work.
example: 43>-4(-9)+11
43>36+11
43>47 What am I doing wrong? Found 2 solutions by solver91311, oscargut:Answer by solver91311(24713) (Show Source):
What you did wrong was to fail to reverse the sense of the inequality when you divided by the negative coefficient on . Everything else you did was correct, so your answer should have been .
Remember, you have to reverse the sense when you multiply/divide by a number less than zero. Think about this example: Two is certainly less than three, right? So:
Now multiply by -1:
Needs the opposite inequality sign, right?
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
