Jill wants to solve the following system using the elimination method:

y = x + 8
y = 3x − 11

What number should the equation y = x + 8 be multiplied by to eliminate x?

−1
−2
−3
3

Question

Jill wants to solve the following system using the elimination method: 

y = x + 8 
y = 3x − 11 

What number should the equation y = x + 8 be multiplied by to eliminate x?

 −1
 −2
 −3
 3

anonymous · Answer

@pooja195

anonymous · Answer

I am thinking -3

anonymous · Answer

am I correct

anonymous · Answer

-3

anonymous · Answer

yeah because -3x + 3x = 0

anonymous · Answer

It depends on what elimination method

anonymous · Answer

thanks I gave a medal can you medal back??

anonymous · Answer

sure

anonymous · Answer

If addition, -3, if substitution 3

anonymous · Answer

Which of the following ordered pairs represents the solution to the system given below? 

x − 4y = 7
5x + 9y = 6

 (3, −1)
 (3, 1)
 (1, −3)
 (−1, −3)

anonymous · Answer

@AliSurfCat What was the elimination method for the first question?

anonymous · Answer

I dont know

anonymous · Answer

x = 7 + 4y so insert 7 + 4y for x in the second equation 5x + 9y = 6

anonymous · Answer

It must have been included in the question. They wouldn't have said "using the elimination method:" without including a specific elimination method

anonymous · Answer

Katross what is the answer?

anonymous · Answer

You should try to figure it out yourself. Don't just ask for the answer.

anonymous · Answer

I have figured them all out without no help but this one I dont know

anonymous · Answer

5(7+4y) +9y = 6 solve from here

anonymous · Answer

it is (3,-1)

anonymous · Answer

yep