Question

Hii =) help?? solve the following

2x-y=11

4x+3y=17

Answer 1

x = 5, y = -1

Answer 2

multiply first equation by 3 and then add. the y's will drop out

Answer 3

the first thing you need to do is solve for one of the two variables. since the top one already has y by itself lets solve that one for y. we get:

y=2x-11

now that we have an equivalent for y, we can plug that into the second equation. it will look like this:

4x + 3(2x-11)=17

now we can solve for x:

4x+6x-33=17
10x-33=17
10x=50
x=5

now that we know x, we can plug that back into our equation for y to get the y value:

y=2(5)-11
y=10-11
y=-1

so the answer is x=5, y=-1

Answer 4

Thankyou all very thoroughly explained naper =)

Answer 5

lol, it's just how i do. ;) you are very welcome.

Answer 6

2x-y=11 4x+3(2x-11) y=2(3.3)+11
-y=-2x+11/-1 4x+6x-33 y=6.6+11
y=2x-11 10x=33/10 y=17.6
x=3.3