Question

SUM OF TWO NUMBERS IS 10 AND THEIR DIFFERENCE IS 4 FIND THE NUMBER​

Answer 1

Answer:

Let the numbers be x and y

Step-by-step explanation:

According to question

X + Y = 10

X - Y =4

From eq 1

X= 10 - y

Substituting in eq 2

10 - y - y =4

10- 2y =4

-2y= 4- - 10

-2y = - 6

Y = 3

X= 1

Answer 2

1st no.=x=7

2nd no.=y=3

Step-by-step explanation:

let the 1st no. be x

let the second no. be y

given,

x+y=10 ....1

x-y=4 .....2

in eq. 1,

x+y=10

x=10-y

substituting x=10-y in eq. 2,

x-y=4

(10-y)-y=4

10-2y=4

10-4=2y

6=2y

6/2=y

3=y

substituting y=3 in eq. 1

x+y=10

x+3=10

x=10-3

x=7

solution

x=7

y=3

hope it'll help.