Simplify:
4 x - -5х + 3x- x+2х - 7х

6x

Step-by-step explanation:

4 x - -5х + 3x- x+2х - 7х

Combine like terms so, so since all are the same you just do the operation they want u to do..

4x + 5x= 9x

9x + 3x = 12x

12x - x = 11x

11x + 2x= 13x

13x - 7x = 6x

Hint: 2 negatives make a postitive

Hint: in there is just an "x" there is always an invisible one in it... 1x

Hope this helped!

answer: 1722

step-by-step explanation:

given: the mass of saturn=

the mass of mercury=

the number of times the mass of saturn is greater than the mass of mercury

hence, the mass of saturn is 1722 times greater than the mass of mercury.

answer: 4 meters

step-by-step explanation: to you understand 2/3 better you can do 1 divided by 3 = . then multiply that by the 2 which is .66666666666666667 then you would do 6 x .66666666666666667 which is 4.      

hope this .