Question

() + ()=17
+ +
() + ()=13
--------
19 15

Answer 1

Answer:

Given:

_+_=17

+ +

_+_=13

= =

19 15

To Find:

_+_=17

+ +

_+_=13

= =

19 15

Solution

From given, we have,

_+_=17

+ +

_+_=13

= =

19 15

let us take

x+y=17

+ +

a+b=13

= =

19 15

so, we have,

x + y = 17

y + b = 15

subtracting both the equations, we get,

x - b = 2 ..........(1)

now consider,

x + a = 19

a + b = 13

subtracting both the equations, we get,

x - b = 6 .......(2)

adding equations (1) and (2), we get,

2x = 8

x = 4

so we can find the values of y, a and b by substituting the obtained value of x.

so, we get,

x = 4, y = 13, a = 15 and b = 2

but the given problem is wrong.

The correct form is,

4 + 13 = 17

+ +

15 - 2 = 13

= =

19 15