Question

from an equation: sum of two consecutive numbers is 19. (pls give step by step solution )​

Answer 1

Answer:

2x + 1 = 19

Step-by-step explanation:

let a number be x

then it's consecutive number becomes x + 1

addition of them becomes x + x+1 = 2x + 1

but given that their sum is 19

so 2x + 1 = 19

Answer 2

Answer:

let the two consecutive no.s be x and y respectively

so y-x=1 (consecutive no.s)

y=1+x

and x+y=19 (given)

x+(1+x)=19

2x+1=19

2x=19-1

2x=18

x=18/2

x=9