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I'll do three so you can get the gist. You do two.

1) - 3x = - 12. Divide both sides of the equation, that means both sides of the = sign, by - 3. Remember when you divide a negative by a negative you get a positive result.

x = - 12 / - 3 = + 4. Answer.

2) 2 - x = - 1. Get x by itself. Subtract 2 from both sides of the equation.

- x = - 1 - 2.

- x = - 3. Since you want x and not - x, multiply both sides by - 1. When you multiply a negative by a negative you get a positive as a result.

x = 3. Answer.

3) - 5 = x + 4. Subtract 4 from both sides of the equation.

- 5 - 4 = x.

- 9 = x. Rewrite in standard format as x = - 9. Answer.

1. x = 12 dived by 3 = 4

2. x= 2+1= 3

3. x=

4. x= 5-2 = 3

5. x=3+2 = 5

1. -3x=-12

x = 4

2. 2-x=-1

-x = -1 -2

-x = -3

x = 3

3. -5=x+4

-5 - 4 = x

-9 = x

4. x+5=-2

x = -7

5. x-3=-2

x = 1

1)x=4

x = -12/-3

2)x=3

x = -1-2

3)x=-9

x = -5-4

4)x=-7

x = -2-5

5)x=1

x = -2+3

in order to solve the questions all you have to do is isolate the variable (get x alone).

to isolate the variable you have to get all the numbers to the other side. in order to do that you have to do the opposite of the question. also, what you do to one side you have to do to the other side in order to keep the equation true.

1. -3x=-12. (you need to get the x alone. and the -3 is multiplied to the x. so you have to divide the -3 on BOTH sides. )

x= 4

2. 2-x=-1 ( you need to add 2 two both sides to get x alone)

-x= 1 (now, the - on the x needs to go. if theres ever a - on a variable think of it as -1x. so the - is being multiplied, so to get it alone you divide it)

x=-1

3. -5= x+4 ( just because the x is on the opposite dont get confused. you need to get rid of the 4, so you would subtract it from both sides)

-9=x

4. x+5=-2 ( you need to get the 5 to the other side so you subtract it from both sides)

x= -7

5. x-3=-2 ( once again, the x needs to be alone. the three is being subtracted now, so do the opposite and add it to both sides.)

x= 1

to solve these, get x on oneside by itself

1. -3x = -12 -->to solve this one, divide both sides by -3

x = 4

2. 2 - x = -1 -->first, subtract 2 from both sides

-x = -1 - 2 -->combine like terms

-x = -3 -->now, divide both sides by -1

x = 3

3. -5 = x + 4 --> subtract 4 from both sides

-9 = x

4. x + 5 = -2 -->subtract 5 from both sides

x = -7

5. x - 3 = -2 -->add 3 to both sides

x = 1

1. x=4

2. x=3

3. x=-9

4. x=-7

5. x=1

Dude, you should be doing your homework yourself.