Question

answer the above question​

Answer 1

Answer:

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Answer 2

The values are a = 3.5 , b = 4.5 , c= 9.5 , d= 3.5

Step-by-step explanation:

taking a,b,c,d

making equations

a+b = 8..(1)

c-d = 6..(2)

a+c = 13 ..(3)

b+d = 8 ..(4)

we can easily solve when we have 4 equations and 4 variables

thus subtracting 2 from 4

we get c+b = 14..(5)

similarly subtracting 1 from 3

we get c-b = 5 ..(6)

now ,solving equation 5 and 6 by elimination method

we get

c= $\frac{19}{2}$= 9.5

now put the value of c in equation 2

c-d = 6

9.5 - d= 6

9.5 -6 = d

d = 3.5

now , place the value of c in equation 3 we get

a+ c = 13

a + 9.5 = 13

a = 13-9.5

a = 3.5

now , place the value of a in equation 1

a+b = 8

3.5 + b = 8

b = 8-3.5

b = 4.5

hence , The values are a = 3.5 , b = 4.5 , c= 9.5 , d= 3.5

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