Question

So im doing some corrections , and need help on figuring some out ...

4. Solve 5 - y = 16
13. what is the first step in solving 3x - 19 = 28 ?
16. 2x - 8 / 4 = 5
21. 5/12 = 10/x - 1
30. solve: 2a = 3a + 4c. solve for a
33. Volume of a retangluar box is V = LWH. if V = 200, L = 12.5, and W = 8, find the height of the box, to the nearest whole unit.
35. Solve: 15(x - 3) = 12x - 43

Answer 1

on 4, you need to isolate y.

Answer 2

isolate ? :o

Answer 3

Get it on its own.

Answer 4

-5 on both sides.

Answer 5

You're left with a negative y, so divide both sides by -1, or negate the problem.

Answer 6

-11 ?

Answer 7

Yes.

Answer 8

thanks ~