Question

5x-10y=0 x+y=3 Solve by substitution method first find the value of y and after x​

Answer 1

Answer:

x=2 and y= 1

Step-by-step explanation:

5x-10y=0.......(1)

x+y= 3.........(2)

multiply equation (2) by 5, we get

5x+5y=15.......(3)

now, substracting equation (1) from (3)

5x+5y = 15

- 5x-10y=0

= 15y= 15

:. y=1

substituting value of y in equation 1

5x-10y=0......(1)

:.5x-10(1)=0

:. 5x-10=0

:.5x=10

:. x=10/5

:. x=2

:.(x,y) = (2,1)