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Tutors Answer Your Questions about Expressions-with-variables (FREE)
Question 98420: 1/4a-12=5/4a+6
I was working it out like this: 1/4a=5/4a+18 and then i didn't do anything because i didn't know what to do after that and i didn't know if it was right. My mom couldn't help me either. So will you please help me?
Click here to see answer by checkley71(8405)   |
Question 98566: This problem does not come from a book, but I would appreciate it very much if you can solve it as I have a deadline tonight! Thanks so much~
Rewrite the equation below in general form Ax + By = C where A, B and C are the smallest integers possible and A > 0.
Enter the variable expression Ax + By separately from the constant term C.
y = 4/7(x) + 2/17
Click here to see answer by stanbon(26259) |
Question 98765: Please help me solve for the unknowns (a and b):
Two numbers added together are 185. The difference between them is 57.
Here is the work that I have done so far:
a+b=185
a-b=57
Please help me. Thank you.
Click here to see answer by stanbon(26259) |
Question 99131: THis is the best I can type it out. I hope you understand it. 6x to the second power y to the third power + 9x to the second power y to the third power. divided by 3x to the second power y by the second power. Simplify it. It looks sort of like this.
Click here to see answer by ankor@dixie-net.com(6691)  |
Question 99229This question is from textbook algebra 2
: you are taking a trip to Switzerland. you are at the bank exchanging $600 for swiss francs. the exchange rate is 1.5 francs per dollar, and the bank charges a 1.5% fee to make the exchange
a. you bought $10 extra with you to pay the exchange fee. do you have enough money?
b. how much will you receive in swiss francs for your $600?
c. after your trip, you have 321 swiss francs left. how much is this amount in dollars?This question is from textbook algebra 2
Click here to see answer by scottnascar(12) |
Question 99447: In this expression I know that the first step is to find the common denominator. And that's where I stopped. Yeah. The expression has complex fractions and involves variables. It is  . Where do I start? I believe that I multiply 6(x-2) by 6x however there's already a 6 in both denominators so do I just ignore this and multiply by (x-2)? I'm very confused. Can you help me?
Click here to see answer by stanbon(26259) |
Question 99462: This particular expression is... complicated. The original problem is  I solved it down to  then I don't know what to do. I tried factoring by grouping and that didn't simplify the expression so then I thought about canceling like terms but that doesn't work for 5x and 3x and then there's nothing for 12. So, my question is: Am I done solving? Or do I have miles to go?
Click here to see answer by edjones(3291)  |
Question 99602: I am not sure how to do this. Can someone break it down so I can understand the steps it takes to come to the answer?
Use the Substitution method to solve the system of equations. Give your answer as an ordered pair (x,y).
x + y = -5
x - y = 3
Click here to see answer by elima(1433) |
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