Can someone please help me with this?

Step-by-step explanation:

all you have to do is just to substitute...you have been given x= -10-15y

go to the first equation

2x+5y=35

it will be 2(-10-15y)+5y=35

work out on the brackets giving you

-20-30y+5y=35

work ouy the like terms together giving u

y=?

since you got the y term,move on to the final equation substituting y with the answer you got in the previous equation

x= -10-15(y=?)

you will get the correct value for x

1,918

step-by-step explanation:

i think it is c, not positive though

step-by-step explanation: