Question

solve the pair of linear equation 2x+y=10 and x-y=2​

Answer 1

Answer:

by substitution method:-

x-y=2

x=2+y

step by step explaination:-

2x+y=10

2(2+y)+y=10

4+2y+y=10

4+3y=10

3y=10-4

3y=6

y=6/3

y=2

Now,

we will take first equation and put the value

x-y=2

x-2=2

x=2+2

x=4

Answer 2

Answer:

2x+y=10———(i)

x -y= 2———(ii)

_______________

2x =12

=> x =12/2

=> x = 6

Substituting the value of x in equation no.i

2x + y = 10

=>2×6 +y = 10

=> 12 + y = 10

=> y = 10 - 12

=> y = -2