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Question

_+_=17++_-_=13==1915


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Solution

Step 1: Given information

_+_=17++_-_=13==1915

Step 2: Determine the characteristic equation

Consider the variables x,y,a,b

x+y=17a-b=13

We get,

x+y=17++a-b=13==1915

Step 3: To determine the value of xandy

So, we have,

x+y=17y+b=15

Isolate the y for y+b=15 we get, y=15-b

Substitute the value in above equation

x+(15-b)=17

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

So, we have,

x+a=19a-b=13

Isolate the x for a-b=13 we get, a=13+b

Substitute the value in above equation

x+(13+b)=19

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

Step 3: To add equations (1) and (2)

x-b=2...(1)x+b=6...(2)

2x=8x=4

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.

Hence,The correct form is,

4+13=17++152=13==1915


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