raiders88 one year ago need help

1. raiders88

ok i need help on 5 problems

2. anonymous

what are the problems

3. raiders88

solve the equation : 4x--36

4. misty1212

HI!!

5. raiders88

hi misty

6. misty1212

$4x-36$ is not an equation, because there is no equal sign there right?

7. raiders88

oh wait srry yea it is

8. misty1212

and equation would be something like $$4x-36=12$$

9. raiders88

its 4x=-36

10. misty1212

oooh

11. anonymous

i see what you are saying misty

12. misty1212

that you can solve by dividing $$-36$$ by $$4$$

13. raiders88

-9

14. misty1212

if four times your number is $$-36$$ then your number is $$-\frac{36}{4}$$

15. anonymous

yes

16. misty1212

yeah right

17. raiders88

ok next one

18. misty1212

lol

19. raiders88

solve the following equation: 5x-15=50

20. misty1212

this one takes two steps a) add 15 then b) divide by 5

21. raiders88

22. misty1212

to both sides

23. raiders88

15 and 50?

24. misty1212

that gets rid of the $$-15$$ on the left

25. misty1212

yeah what is $$50+15$$?

26. raiders88

65

27. misty1212

ok so if $5x-15=50$ then you know $5x=65$

28. misty1212

29. anonymous

you are really good at this misty i can do it but not that good

30. misty1212

(blush)

31. raiders88

13

32. raiders88

yeah ur amazing misty i could kiss you

33. misty1212

$\color\magenta\heartsuit$

34. anonymous

<3

35. raiders88

<3 <3

36. raiders88

4(x+2)-17=35

37. misty1212

ooh now it is going to take more steps lets get rid of the $$-17$$first by adding $$17$$ to both sides what do you get?

38. raiders88

17 and 35?

39. misty1212

yes

40. raiders88

ok

41. raiders88

52

42. misty1212

so if $4(x+2)-17=35$ you know $4(x+2)=52$

43. misty1212

now divide both sides by 4

44. raiders88

4 and 50?

45. misty1212

divide 52 by 4

46. raiders88

13

47. misty1212

ok so if $4(x+2)=52$ you have $x+2=13$ subtract 2 to get x

48. raiders88

11

49. misty1212

bingo

50. raiders88

ok

51. misty1212

want to check it?

52. raiders88

nope

53. misty1212

sounds good

54. raiders88

ok um 2 more

55. misty1212

lol

56. raiders88

6x+12=4x-18

57. misty1212

a) subtract $$4x$$ from both sides you need the x's on one side of the equal sign

58. raiders88

14

59. misty1212

oh no $6x+12=4x-18$ what is $$6x-4x$$?

60. raiders88

2x

61. misty1212

right, so we are at $2x+12=-18$

62. misty1212

now subtract $$12$$ from both sides

63. raiders88

12 and 2?

64. misty1212

$2x+12=-18\\ 2x+12-12=-18-12\\ 2x=-18-12$ your job is to compute $$-18-12$$