Question

solve the pair of simultaneous equation : x+y=5, y=x+3​

Answer 1

Answer:

y=4, x=1

Explanation:

x+y=5, y=x+3

x+y=5,-x+y=3

x-x+y+y=5+3

2y=8

y=4

to find x

x+4=5

x=1

hope it helps

Answer 2

Answer:

x + y = 5 ...(1)

y = x + 3 ...(2)

substituting the value of equation (2) in equation (1)

x +(x+3) = 5

2x + 3 = 5

2x = 5-3

2x =2

x = 2