Question

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Answer 1

Hay buddy

Take

x+y=14................eq.1

a-b=10................eq.2

x+a=15..............eq.3

y+b=16...............eq.4

Then solve have fun

Answer 2

Answer:

Let us give each box a variable ;

a + b = 14 -----(1)

c - d = 10 -----(2)

a + c = 15 -----(3)

b + d = 16 -----(4)

c - d = 10

c = 10 + d -----(5)

substituting eq (5) in eq (3)

a + 10 + d = 15

a + d = 5

d = 5 - a ----(6)

substituting eq (6) in eq (4)

b + 5 - a = 16

b = 11 + a ----(7)

substituting eq (7) in eq (1)

a + 11 + a = 14

2a = 3

a = 3/2

a = 1.5 ----(8)

substituting eq (8) in eq (3)

1.5 + c = 15

c = 13.5 ----(9)

substituting eq (9) in eq(2)

13.5 - d = 10

13.5 - 10 = d

d = 3.5 ----(10)

substituting eq (10) in eq(4)

b + 3.5 = 16

b = 12.5

a = 1.5 , b = 12.5 , c = 13.5 , d = 3.5

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