MATH HELP!!!!!! 10 POINTs!!!!!!!?

Question

1) 5=2x+1
x=0

2) 13-x=8
x=5

3) -4-5x=2
x=-1.2

4) 8-3x=-1
x=-3

5) -12=9w-30
x=-2

6) 3/4m=-9
m=.8125

7) -2/5m=-4
m=-/6

8) 0.6b+51=42-1.4b
b=155

I NEED TO KNOW IF MY ANSWERS ARE RIGHT OR NOT

SO I CAN FIX THEM

Answer 1

1) x= 2
2) correct
3)correct
4)correct, u got the rest right!

Answer 2

1) 5-1=2x, 4=2x, x=4/2 = 2
2) 13-x=8, 13-8=x, x=5
3) -4-5x=2, -5x=2+4, -5x=6, x=6/-5, x=-1 1/5
4) 8-3x=-1, -3x=-1-8=-9, x=-9/-3=3
5) -12=9w-30, -12+30=9w, 9w=18, w=18/9=2
6) 3/4 m = -9, m = -9 x 4 / 3 = -12
7) -2/5m=-4, m=-4 x 5 / -2 = -20/-2 = 10
8) 0.6b+51=42-1.4b, 0.6b+1.4b = 42-51, 2b = -9, b = -9/2 = -4.5

Answer 3

1)x=2
2)x=5
3)x=6/-5 or -(1.2)
4)x=3
5)x=2
6)x=-12
7)m=10
8)b=-4.5
For #8 you have to get all the b's on one side, so add 1.4b to both sides and get everything else to the otherside by subtracting 51. so now you have 2b = - 9 now what do you get.

Answer 4

1. x=2
2. x=5
3. x= -(2/5)
4. x =3
5. w=2
6. m=-12
7. m=10
8. b=-4.5

Answer 5

1. x=2 not 0
5. w=2 not -2
6. m=12
7. m=-10

Answer 6

you should you just ask your teacher and explain to her/him.and hope that they will understand.but if people off the Internet answers them for you ,then you will never
learn them.then when you be com an adult you will be very smart.so follow this advice and be com very smart.not that you aren`t smart it`s just that you will become even more smart.man i should really shut-up befor i get myself in big trouble and get beat up so by!!!!!!!

Answer 7

1) x= 2
2) correct
3)correct
4)correct, u got the rest right!

Answer 8

why are you asking for help when it seems that you already have the answers?

Answer 9

It seems you already have the answers...

Answer 10

gee, i'm really sorry. i can't help you though. best of luck!