Could Somebody please help me?

Question

Solve for “x”.

42) 1/3x = -7

Solve for “n”.

44) n/-8 = -5

45) Solve for “n”: 3(n – 1) = 2n + 8

46) Solve for “y”: 4y + 3(y + 3) = 14y + 23

Answer 1

you must get your variable by itself, with no numerical value. so it would be like this

1/3 divided by -7=x

-8 times -5 =n

3n-4=2n=8

5n-4=8

5n=12

12divided5

n=....

Answer 2

On each of these problems, you just isolate for the unknown variable.

42  1/3X = -7  

       X = -21  (All you do is multiply each side by 3)

44  N/-8 = -5  (Okay this one you do the same as the one above.  Multiply both sides by -8 (negative 8) to isolate for N.)

45  3(n-1) = 2n + 8

    3n - 3 = 2n+8    (you put all your "n's" on one side)

    n = 11

Try doing the last one for yourself.  You do it the same way.  Remember to first multiply out your 3(y + 3).  Then put all your y's on one side.