Find the value of 5x -10 given that negative 2x +2 equals 8

5

Step-by-step explanation:

Let's solve for x first

2x+2=8

    -2  -2

2x=6

Divide both sides by 2

x=3

Plug into our equation (5x-10)

(5*3)-10=?

15-10=?

5

Hope I could help!

                                                                                 -Kaylyn

12.5 feet

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional