Question

answer this question ​

Answer 1

Answer:

$\huge\fcolorbox{black}{pink}{Answer-}$

Let us give each box variable ,

therefore;

A + B = 8 ---(1)

C - D = 6 ---(2)

A + C = 13 ---(3)

B + D = 8 ---(4)

Equating eq (1) and eq (4)

A + B = B + D

A = D ------(5)

Substituting eq (5) in eq (2)

C - A = 6

C = 6 + A ----(6)

Substituting eq (6) in eq (3)

A + 6 + A = 13

2A = 7

A = 3.5 ---(7)

A = D

D = 3.5 ---(8)

Substituting eq (7) in eq (1)

A + B = 8

B = 8 - 3.5

B = 4.5

Substituting eq (8) in eq (2)

C - D = 13

C = 13 + 3.5

C = 16.5

THEREFORE ,

$\huge\fcolorbox{green}{purple}{A = 3.5 , B = 4.5 , C = 16.5 , D = 3.5 }$

Answer 2

Answer:

Answer:

\huge\fcolorbox{black}{pink}{Answer-}

Answer-

Let us give each box variable ,

therefore;

A + B = 8 ---(1)

C - D = 6 ---(2)

A + C = 13 ---(3)

B + D = 8 ---(4)

Equating eq (1) and eq (4)

A + B = B + D

A = D ------(5)

Substituting eq (5) in eq (2)

C - A = 6

C = 6 + A ----(6)

Substituting eq (6) in eq (3)

A + 6 + A = 13

2A = 7

A = 3.5 ---(7)

A = D

D = 3.5 ---(8)

Substituting eq (7) in eq (1)

A + B = 8

B = 8 - 3.5

B = 4.5

Substituting eq (8) in eq (2)

C - D = 13

C = 13 + 3.5

C = 16.5