Question

5x+8y=1
x+y=2

Answer 1

Can u plz tell me vat u get when u multiply the second equation by 5?

Answer 2

You are solving by substitution.

Answer 3

No elimination. Do u want to solve it by substitution?

Answer 4

yes!

Answer 5

there are two methods, one method is the way @ajprincess is about to explain, i will explain the other method


you have
5x+8y=1
x+y=2

you can re arrange the second equation to get x= or y=
i will rearrange to get y=

y=2-x

now we have a value for y kind of... now we will substitute this into the first equation

5x+8(2-x)=1
5x+16-8x=1
-3x=-15
3x=15

x=15/3
x=5

we have x value

now we can substitute the value for x into the first equation again, to find out y

5(5)+8y=1
25+8y=1
8y=-24
y=-24/8
y=-3


x=5
y=-3

Answer 6

Ok i See where I went wrong. Thank you!

Answer 7

Gud explanation @amorfide:)

Answer 8

thank you!
sorry... didn't mean to steal your thunder xD

Answer 9

yw:)
That's k. In fact u explained it really well.:)