Question

the solution of the pair of equations 2x + y = 10 and x+y = 7 is ?​

Answer 1

Step-by-step explanation:

2x+y=10

2x=10-y

x=10-y/2_eq. 1

now

x+y=7

(10-y)/2+y=7(from eq. 1)

(10-y+2y)/2=7

10+y=10

y=1

putting this value in eq 1

2x+y=10

2x+1=10

2x=10-1

x=9/2

Answer 2

Answer:

2x +y = 10

x + y =7

a1 / a2 = 2/1

b1 /b2 = 1/ 1

a1 / a2 not equal to b1 /b2. (unique solution)

Consistent pair of linear equation..

$i \: hope \: it \: helpful$