Solve the varible : 1: -5z + 8 = 33
2: -4b - 7 = 37
3: 8x + (-9) = 45
4: 6c + 7 = -29

1: -5z + 8 = 33

-5z=33-8

z=-25/5

z=-5

2: -4b - 7 = 37

-4b=37+7

b=-42/4

b=21/7

3: 8x + (-9) = 45

8x=45+9

x=54/8

x=27/4

4: 6c + 7 = -29

6c=-29-7

c=-36/6

c=-6

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour