Need a little help
Solve the system using elimination
3x + 5y = −18
4x − 10y = −24

Question

Need a little help 
Solve the system using elimination
3x + 5y = −18	
4x − 10y = −24

shylovesyou11 · Answer

3x+5y=-18 call this equation 1 
4x-10y=-24 call this equation 2 

This is quite easy, let's just multiply equation 1 through by 2. 
6x + 10y = -36 now let's add this to equation 2 
4x-10y=-24 
10x = -60 
divide by 10 
x = -6 
now substitute back to get y. 

4x-10y=-24 
4(-6) -10y = -24 
-24 -10y = -24 
-10y = -24+24 
-10y = 0 
y=0 
=)

anonymous · Answer

Oh thanks I was confused on whether or not to multiply by 2 or not!!

shylovesyou11 · Answer

You're welcome! ^_^