To solve this system using the addition method, you would need to multiply the first equation by what number in order for the x's to add out?

2x + 3y = 8
-6x + 4y = 11

3
-3
6
none of the above

Can someone show me how to solve this? ..please?

Question

To solve this system using the addition method, you would need to multiply the first equation by what number in order for the x's to add out? 

2x + 3y = 8 
-6x + 4y = 11 

 3 
 -3 
 6 
 none of the above 

Can someone show me how to solve this? ..please?

ranga · Answer

There is a -6x in the second equation.  To eliminate -6x we need to add +6x to it.
If you multiply the first equation by 3 and then add it to the second equation then the x term will be eliminated.

anonymous · Answer

Thank you that's what ive been trying to figure out for about 30 minutes

ranga · Answer

2x + 3y = 8
multiply by 3
6x + 9y = 24
add it to the second equation:
6x + 9y = 24
-6x + 4y = 11
add
0x + 13y = 35
13y = 35
y = 35/13
They are not asking you find x and y.  But I am just showing how to do it for y.
You can put the y value in either of the equations and then solve for x.

anonymous · Answer

That helped a lot, thank you

ranga · Answer

you are welcome.