algebra/inequalities
posted by lauren .
Damon,
Thanks for the help. Let me see if I get it now. So,
2x < 4
divide both sides by 2
answer is x > 2
I had x < 2, but I reverse the sign since I divided by a 2 on both sides, correct?

Hi, I am not a teacher but I know this stuff.
You are correct.
When multiplying or dividing by neg number you always reverse the sign.
Respond to this Question
Similar Questions

Algerbra 1
1/3x + 5/6 = 2/9x  1/3 How do I solve this to get the answer? 
math
can anyone help me with these 3 problems I am trying to check my daughters hoime work it has bee na few years. 1. The sum of n and twenty two, multiplied by three, is 78 2. the product of z and 17 is less than or equal to the difference … 
Math, rational inequalities
Please can someone help me solve this problem? 
Algebra
 20> 8 +7a Solve inequalities like you would an equation, EXCEPT if you multiply or divide by a negative number, reverse the inequality sign. Let's look at your problem:  20 > 8 + 7a First subtract 8 from both sides (whatever … 
math,correction
can someone correct these for me i'll appreciate it thank. dirctions: solve 3x7=2x+8 my answer: x = 15 directions: solve 2/5x=10 my answer: x = 25 Directions: solve 3(x+1)=2(x8)+3 my answer: x= 3.2 1 looks ok. Show your work … 
mathinequalities
I really don't understand this stuff for example: 9b3b+34<2b10 and 7a+3=24 letters represent variables so they can be anything really. Once you understand this step then the rest of the problem can start to make sense. Inequalities … 
algebra
I need a step by step explanation on how to add these two equations 2x+3y=1 5x+3y=16 Subtract the first equation from the second. (Subtract left and right sides separately). This gives you 3x = 15 Then divide both sides by 3. x = 5 … 
science
rearrange this equation 2 make x the subect. 6y = 9  3x so first i add 3x to both sides which makes it 3x  6y = 9 then do i divide both sides by 9 or wat? 
algebra/inequalities
Damon, Thanks for the help. Let me see if I get it now. So, 2x < 4 divide both sides by 2 answer is x > 2 I had x < 2, but I reverse the sign since I divided by a 2 on both sides, correct? 
math
When you are solving inequalities, when does the sign change and when does it not?