Question

3x/4 = 7+ x/6 helpp me please!

Answer 1

x=12

Answer 2

multiply whole equation by 12 on both sides to delete numerators.

Answer 3

9x=84+2x.

7x=84

x=12.

Answer 4

where did 84 come from?

Answer 5

divide 7 from both sides.

Answer 6

srry but i still dont understand. i only got 9x = 7 + 2x

Answer 7

then drag 2x to the other side to make it, 9x-2x=7

Answer 8

so would you have 7x = 7 x=1

Answer 9

er....84.

Answer 10

my bad.

Answer 11

9x-2x=84.*****

Answer 12

error there.

Answer 13

its okay

Answer 14

sorry i really dont get this im only in 8th grade.

Answer 15

so 7x=84.
then divide 7 to make it, 7x/7=84/7.

Answer 16

cancel the 7's.

Answer 17

what do you multiply to get 84?

Answer 18

12.

Answer 19

x/4 and x/6 have least common multiple of 12.

Answer 20

so multiply whole equation by 12/1.

Answer 21

yea then i get 36x/4 = 7+ 12x/6

Answer 22

no.

Answer 23

w8, yes. but multiply the 7 as well.

Answer 24

so since 7 is on the 12x/6 side you wud multiply it by 12?

Answer 25

this is what u r doing to the whole equation.

12((3x/4=7+x/6))

Answer 26

then, distribute the 12 to each number.

Answer 27

12(3x/4)=12(7)+12(x/6).

do u get that^^^?

Answer 28

yea. so your answer wud be 36x/4 = 84 + 12x/6

Answer 29

yup. then u cancel out common factors.

Answer 30

36/4=9 so 9x.
84 remains the same.
12/6=2 so 2x.

Answer 31

so your left with 9x =84 + 2x

Answer 32

yep. then subtract 2x from both sides to get 9x-2x=84.

Answer 33

subtract from both side then you get 7x=84!

Answer 34

There ya go!

Answer 35

x=12

Answer 36

yup!

Answer 37

thank you so much!

Answer 38

glad i could help!

Answer 39

:)

Answer 40

you dont know how much i appreciated the step by step help!

Answer 41

hey no problem! That's why I'm here!

Answer 42

=) can you help me with another problem?

Answer 43

sure.

Answer 44

its more challenging than the other one.

Answer 45

thank you so much!

Answer 46

hit me.

Answer 47

5x/2 - 10 = x/4 - 1

Answer 48

step 1....

Answer 49

ok, so the least common multiple of this one would be 4, right?

Answer 50

yes. b/c they have the same common denominator.

Answer 51

then you multiply 4 to the whole equation.
show me the result.

Answer 52

gotcha.

Answer 53

20x/4 - 10 = 4x/4 -4

Answer 54

u forgot 10.

Answer 55

yeah.

Answer 56

multiply, 4(-10).
remember, all the numbers in the equation.

Answer 57

20x/4-40=4x/4-4.

Answer 58

u with me?

Answer 59

sorry. so its 20x/4 - 40 = 4x/4 - 4

Answer 60

yes it is.

Answer 61

so now, you would simplify this equation.

Answer 62

5x-40= x-4

Answer 63

yup. good job.

Answer 64

now you have to isolate x.

Answer 65

woohoo.

Answer 66

k so now. i have 4x-40 = -4

Answer 67

correct.

Answer 68

sweet.

Answer 69

now the other side.

Answer 70

x= 9

Answer 71

yay! good job!

Answer 72

woohoooo!!! high five!!!

Answer 73

yay. we did it!

Answer 74

no, u did it! lol.

Answer 75

lol. you helped me alot!

Answer 76

lol i'm here for a reason.

Answer 77

i know you are! are you like a math professor or something?

Answer 78

thank you so much once again. i really appreciate the help!

Answer 79

np! glad I could help!

Answer 80

=)

Answer 81

:)

Answer 82

can i ask you another question. its different than these. this is my last question.

Answer 83

sure.

Answer 84

5y - 2 (y+2) = 5

Answer 85

ok, do u know the distributive property?

Answer 86

yes i do.

Answer 87

distribute 2 to y+2.

Answer 88

2 or -2

Answer 89

good question. -2. do u know why?

Answer 90

remember that theres a minus sign behind the 2

Answer 91

yes. i got it.

Answer 92

so you wud have.......... 5y (-2y - 4 ) =5

Answer 93

no, it's 5y-(-2y)-4=5.

Answer 94

Okay. so then you wud do keep fix change so now u have 7y -4 =5 ?

Answer 95

yep.

Answer 96

no!!!

Answer 97

error.

Answer 98

yeah. that didnt make sense when i tried to solve it.