Can you help me with this really fast?

Question

a) x-2=-21 B)2x=8? C) -2x+3=-19.

i DON'T GET ANY OF THIS CAN SOMEONE HELP ME FAST.
can you show what the equation looks like when it's done.

Answer 1

x-2 = -21
x=-21+2
x=-19

2x=8
x=8/2
x=4

-2x+3=-19
-2x=-19+3
-2x=-16
x=-16/-2
x=8

Answer 2

a) x-2=-21
+2 +2 add 2 to both sides
x=-19
b) 2x=8
/2 divide by 2
x=4
c) -2x+3=-19
-3 -3 subtract 3 from both sides
-2x=-22
/2
-x=-11
x=11

Answer 3

a)
add 2 to both sides
x - 2 + 2 = - 21 + 2
x = - 19

b)
This reads 2 times a number, x , equals 8
So x must be 4, set out as follows:-
2x = 8
x = 4

c)
-2x + 3 = - 19 (subtract 3 from both sides)
- 2x + 3 - 3 = - 19 - 3
- 2x = - 22
x = 11 (because - 2 x 11 = - 22)

Answer 4

It is all about isolating X by adding/subtracting and dividing/multiplying the same value on both sides of the equal sign.

a) x-2=-21
Add 2 on both sides, so you have x-2+2 = -21 + 2
and then reduce: x=-19; that is your answer, x is -19

b) 2x=8
Divide by 2 on both sides, so you have x=8/2 or x=4

c) -2x + 3 = -19
This one requires both steps. First subtract 3 on both sides:
-2x+3 -3 = -19 -3 which reduces to -2x = -22;
then divide by -2, so you have x = 11

Answer 5

pretty simple algebra
solve for x
a. x-2=21 (add 2 to both sides)
x=23
b. 2x=8 (divide by 2 on both sides)
x=4
c. -2x+3=-19
-2x=-22
x=11

Answer 6

a) x-2=-21
x=-21+2
x=-19

b) 2x=8
x=8/2
x=4

c) -2x+3=-19
-2x=-19-3
x=-22/-2
x=11

Answer 7

a) add 2 to both sides: X = -19
b) divide both sides by 2: X = 4
c) subtract 3 from both sides, then divide both sides by -2: X = -8

This is extremely simple algebra...

Answer 8

I don't get it either. It looks like algebra to me. Good luck.