Use addition to solve the linear system of equations. include all of your work in your final answer. -x-y=4 x+2y=4

x=-12, y = 8

Step-by-step explanation:

-x-y=4

x+2y=4

Add these two equations together to eliminate x

-x-y=4

x+2y=4

y=8

Now we need to find x

x+2y =4

Substitute y in

x +2(8) =4

x+16 =4

Subtract 16 from each side

x+16-16 =4-16

x=-12

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.

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation: