Question

3x + y = 5 & x+3y=15
then
Exty) = x,y
​

Answer 1

Step-by-step explanation:

3x+y=5------------(1)

x+3y=15-----------(2)

(1)×1=3x+y= 5

(2)×3=3x+9y=45

(-) (-) (-)

-------------------------

-8y= -40

y=5

putting the value of y in equation (1) we can get

3x+y=5

=>3x+5=5

=>3x=0

=> x=0

so,x=0 y=5