Question

Solve by the elimination method:
x + y = 18
8x - y = 63

Answer 1

I can help you

Answer 2

Thanks. thats nice of you

Answer 3

See,

Just add both the equations

Answer 4

then you will get 9x = 81 => x = 9

Answer 5

This is what you needed !!

Answer 6

Are you satisfied with the answer ?

Answer 7

let me check

Answer 8

y=18-x
8x-(18-x)=63

8x-18+x=63
9x=63+18
9x=81
x=9

if i made no mistake

Answer 9

Yaa you are right too racht

Answer 10

eliminate one variable from the first equation, them apply it into the second.
then solve the new equation by moving all the unknown to the same side, the known to the other side

Answer 11

You got it right. thanks so much

Answer 12

Hey congratss RachT you got a medal !!!! :)

Answer 13

Hey I got a medal tooo hurray !

Answer 14

Hey kuoldan you got a medal too