Question

3/4u+1/2=7/8

Answer 1

1. Multiply 1/2 by 2/2. Let me know what you get afterwards

Answer 2

\[\frac{ 3 }{ 4}u +\frac{ 1 }{ 2 }=\frac{ 7 }{ 8 }\] and 1

Answer 3

i got 2/4

Answer 4

Okay, so now you have

\[\frac{3u}{4} + \frac{2}{4} = \frac{7}{8}\]

Now since the left side has fraction with the same denominator combine them together. Let me know what you get.

Answer 5

\[\frac{ 5u }{ 4 }=\frac{ 7 }{ 8 }\]

Answer 6

Okay, so cross multiply that.

Answer 7

28/40

Answer 8

I think you mean 40u = 28

Answer 9

yeah

Answer 10

0.7

Answer 11

now how do i turn that into a fraction

Answer 12

0.7 means seven-tenths right?

Answer 13

yeah

Answer 14

And seven-tenths means the same as 7/10 right?

Answer 15

yeah but 7/10 isnt a choice for me to choose from

Answer 16

That u variable...was it in the numerator or the denominator of the original problem?

Answer 17

neither

Answer 18

interesting...Let me try something...

Answer 19

ok

Answer 20

these are my choices 1/4 1/2 1 or 3/8

Answer 21

Yeah, I realize that I wasn't monitoring you very well. You made a mistake while combining the fraction.

Answer 22

what??

Answer 23

When you combined \[\frac{3u}{4} + \frac{2}{4} = \frac{7}{8}\]

You cannot add 3u + 2 to get 5u

Answer 24

When you combine fractions on the left side you end up with

\[\frac{3u + 2}{4} = \frac{7}{8}\]

Answer 25

From there, you cross multiply

Answer 26

i dont get it now im completely lost

Answer 27

When you see something like x + 2, you don't combine that to get 2x because that would not be correct would it?

Answer 28

i guess not

Answer 29

I'm sorry, you're confused but

when you see problems with expressions like x + 2, you cannot add those together directly. I thought you were already familiar with "like terms"

Answer 30

i am but now im confused

Answer 31

If you were familiar with like terms you would know that you can only combine numbers in this manner:

3 + 4 = 7

7u + 4u = 11u

2xy + 4xy = 6xy

See the pattern here?

Answer 32

Those are all like terms because they have the same things in common.

Answer 33

yeah but there arent any like terms in this equation

Answer 34

You cannot combine

4x + 2u

6x + 5

8xy + 6u

6 + 7x

Answer 35

Why? Because they are not like terms

Answer 36

obviously

Answer 37

Like Terms

4 + 6 = 10

x + 3x = 4x

6a - 2a = 4a

Unlike Terms

7x + 5

2a + 6b

8u + 5x

8ab + 2xy

Answer 38

Are you getting it yet?

Answer 39

ok i get all that now can you help me pls

Answer 40

I thought I WAS helping.

Answer 41

3u + 2

What does that equal?

Answer 42

3u+2

Answer 43

Exactly. Now just cross multiply.

Answer 44

\[\frac{3u + 2}{4} = \frac{7}{8}\]

Answer 45

3u+16=28

Answer 46

8(3u + 2) = 28

Answer 47

im completely lost now

Answer 48

Every step seems to completely lose you. I thought you knew how to cross multiply.

Answer 49

8(3u + 2) = 28 this equation doesnt look like cross multiplying

Answer 50

Let me re-write it this way:

8(3u + 2) = 4(7)

Answer 51

ok

Answer 52

Cross multiplication is multiplying the opposite numerators with the opposite denominators. You don't multiply part of an expression when cross multiplying. You multiply the entire expression.

Answer 53

ok 8(3u + 2) = 28 so how do i do the 8(3u+2) part of the equation

Answer 54

Ever heard of distributive property?

a(b+c) = ab + bc

Answer 55

yes

Answer 56

I didn't know you needed help with every basic concept in the book.

Answer 57

24u=26/24??

Answer 58

Now how did you end up with a fraction again? I thought we got rid of those. You didn't apply distributive property very well.

Answer 59

8(3u + 2) = 28 becomes:
8*3u + 8*2 = 28

Answer 60

well you confused me with this whole problem i didnt need help with every step until you confused me so excuse me for making me feel stupid

Answer 61

Are you going to finish the problem?

Answer 62

idk are you going to stop confusing me??

Answer 63

26/24 part isnt a fraction i was asking if i divide them??

Answer 64

??? are you going to finish helping me??