HELP!!!!! Having trouble in Algebra 2!!!!!?

Question

ok well i really need help....this is a really simple part of the subject but i was absent when the teacher explained it so can u give me some answers???? here are the probs....

a = -5 b = 6 c = 2.8

|-3a|

|-4b|

|a+5|

|2-b|

|2b-15|

|4a+7|

-|18-5c|

-|c-a|

6-|3c+7|

9-|-2b+8|

3|a-10|+|2a|

|a-b|-|10c-a|

Thanks a bunch

Answer 1

shoulda asked me fool

are these all together or seperate?

too bad im speperating them (:

|-3a| = 15

|-4b| = -24

|a+5| =0

|2-b| -4

|2b-15| = 2x6-15

          = -3

|4a+7| =4x-5+7

          = -13

-|18-5c|  

-|c-a|

6-|3c+7|

9-|-2b+8|

3|a-10|+|2a|

|a-b|-|10c-a|

got too lazy to bother finishing (:

YAAAAAAAAAAAAAAAAAAAAAAAAAY

Answer 2

if the letter is next to a # you multiply it, or if their is something like a addition symbol just pretend the letter is the regular number.

example:  -3a = -3X-5 = 15

or

a+5= -5+5= 0

Answer 3

For problem one.

"|  |" Means the absolute value.

"-3a" Means "-3 multiplied by "a" or in this case "-5"

So "-3" * "-5" is 15

The absolute value "|15|" is 15.

Answer 4

absolute value is basically the distance on a number line from zero.

so pretty much in |x| if x is positive the answer is x, and if x is negative the answer is -x.

15

24

0

4

3

13

-4

-7.8

-9.4

5

55

-22

Answer 5

15

24

0

4

3

13

-4

-7.8

-9.4

5

55

-22