Sunday

February 1, 2015

February 1, 2015

Posted by **Sara!** on Thursday, June 3, 2010 at 7:00pm.

1.2x/3 + 1/3 - x/8= 2/3

2. 3n + 9/10 + n/5= -2 3/10

3. 3k/4 - 28 - 2k/3 = 37

thank you can you please show me step by step how you got the answer?

- math -
**Reiny**, Thursday, June 3, 2010 at 7:20pmI will do one for you, and you try the other two

2.

3n + 9/10 + n/5= -2 3/10

3n + 9/10 + n/5= -23/10

looks like 10 is the lowest common denominator, so multiply each term by 10

30n + 9 + 2n = -23

32n = - 23 - 9

32n = - 32

n = -1

hint: for the first, multiply each term by 24

for the third, multiply each term by 12

- math -
**Sara!**, Thursday, June 3, 2010 at 7:39pmi got for # 3 8/13 and plugged in the number for the letters and got it wrong. what is the correct way to solve it thank you

- math -
**Reiny**, Thursday, June 3, 2010 at 9:29pm#3

3k/4 - 28 - 2k/3 = 37

times 12

9k - 336 - 8k = 444

k = 444+336

k = 780

check:

Left side = 3(780)/4 - 28 - 2(780)/3

= 585 - 28 - 520

= 37

= right side

My answer is correct, how did you get 8/13 ?

**Answer this Question**

**Related Questions**

Math - I am having problems understanding how to solve problems like the ...

math - there's a question that I don't understand and the direction says that '...

Math - For problems 1 and 2, determine how many solutions there are for each ...

Math - Solve for S: r^2s-5s=7. Solve for b: L= 4a^2b. I'm confused about how to ...

English - It is very rude of you to behave like that. It is very wise of you to ...

Math - 16.Eliot spent 24 minutes solving 8 math problems.At that rate, how many ...

math - how would I solve 10=7-m? I dont understand how to find the variable and ...

Math help please - 1. Solve for x. 4(x - b) = x b = 4/3x b = 3/4x x = 4/3b x = 3...

algebra - show how to solve these problems: 1. 6x - y = -4 2x + 2y = 15 answer:x...

Math - What is a good math website which'll help kids aged 5-6 learn? I want a ...