Hi, I need some help please? I'm new at this?

Question

Evaluate x = -5

1. |4x|

2. |-2 + 5|

For each equation, determine which numbers in {-2, -1, 0, 1, 2} are solutions.

3. |x - 2| = 1

4. |x + 6| = 19

5. 11|x - 9| = 121

6. 5 |x + 4| = 45

Answer 1

1. |4x| for x=-5 is |-20| = 20

2. |-2 + 5| =3 for any x.

3. |x - 2| = 1 means x-2=1 or x-2 =-1
So x=3 (not in {-2, -1, 0, 1, 2}) or x=1 alright.

4. |x + 6| = 19 means x+6=19 or x+6=-19
So x=13 or x=-25.
No solution, because both not in {-2, -1, 0, 1, 2}

5. 11|x - 9| = 121 So x-9 =11 or x-9 =-11
So x=20 or x=-2 Only the last one is in {-2, -1, 0, 1, 2}

6. 5 |x + 4| = 45 So x+4=9 or -9
So x=5 or x=-13. Both not allowed; not in {-2, -1, 0, 1, 2}

Answer 2

1 20
2 3
3 . 1
4 non
5 -2
6 non

Answer 3

1. 20
2. there is no "x"? 3
3. 1
4. x=13
5. 2
6. x=5

Answer 4

Only in # 3 answer 2

Answer 5

1) 20
2) 3
3) 1
4) nil set (none of them work); closest would be 2 (answer = 8); x must = 13
5) -2
6) nil set (none of them work); closest would be 2 (answer = 30); x must = 5

Answer 6

do you understand what mod means in the first place?
eg. I5I=5, I-5I=5

Answer 7

Honestly, my maths was good,
but my Mathematics was lousy,
sorry i cant help...