Question

the pair of equations ×-2y-5=0And -3x-6y+15=0​

Answer 1

Step-by-step explanation:

X - 2y=5

by multiplying by minus in the equation second we get

3 X + 6 y =15

to get the value of x or y is to be negligible we have to multiply equation first by 3

so after multiplying equation first by 3 we get

3 x - 6 y= 15

by adding both equation we get

6 x= 30

X=5

now putting the value of x in one of the equations we get

5-2y=5

-2y=0

y= 0

hence the value of x and y are as follows thank you

Answer 2

Step-by-step explanation:

x-2y-5=0

x-2y=5 ---------------eq(1)

-3x-6y+15=0

-3x-6y= -15

-(3x+6y)= -(15)

3x+6y=15 ---------------------eq(2)

in eq( 1) &(2),

3x+6y=15 ------------eq(2)

3x-6y=15 { eq(1)*3}

- + -

0 12y =0

y=0

x-2y=5

put the value of y

x-0=5

x=5

answer=

x=5

y=0