Question

a. +. b. = 8
+. +
c. - d. = 6

= =
13. 8

answer this question​

Answer 1

$\rule{200}{2}$

$\huge\boxed{\boxed{\underline{\mathcal{\red{A}\green{N}\pink{S}\orange{W}\blue{E}\pink{R:-}}}}}$

The value of a , b, c and d are 3.5 ,4.5 , 9.5 and 3.5 respectively

Step-by-step explanation:

Refer the attached figure

a+b=8 --1

a+c=13 --2

b+d=8 --3

c-d=6 ---4

Subtract 1 from 2

a+c-(a+b)=13-8

a+c-a-b=5

c-b=5 --A

Add 3 and 4

b+d+c-d=8+6

b+c=14 --B

Add A and B

c-b+b+c=5+14

2c=19

c=9.5

Substitute value of c in A

9.5-b=5

b=4.5

Substitute in 1

a+b=8

a+4.5=8

a=3.5

c-d=6

9.5-d=6

d=3.5

Hence the value of a , b, c and d are 3.5 ,4.5 , 9.5 and 3.5 respectively

Answer 2

꧁SOLUTION ꧂

✧♥༻༺♥✧

☆GIVEN☆

• THE PUZZLE IN THE FORM OF EQUATION

☆SO, THE EQUATIONS ARE☆

➢a+b=8.......(1)

➢c-d=6......(2)

➢a+c=13......(3)

➢b+d=8.......(4)

✼Here solving equations by substituting method✼

• let starts with equation 1

➢a+b=8

• a=8-b

➢putting the value of a in EQ 3

➢a+c=13

• 8-b+c=13
• b=c+8-13
• b=c-5

➢puting the value b in EQ 4

➢b+d=8

• c-5+d=8
• c=8+5-d
• c=13-d

➢putting the value of c in EQ 2

➢c-d=6

• 13-d-d=6
• 13-2d=6
• 13-6=2d
• d=7/2=3.5

➢putting the value of d in EQ 2

➢C-d=6

• c-3.5=6
• c=6+3.5
• c=9.5

➢putting the value of c IN EQ 3 AGAIN

➢a+c=13

• a+9.5=13
• a=13-9.5
• a=3.5

➢putting the value of a in EQ 1 AGAIN

➢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

☆VERIFICATION☆

• A+B=8.........(1)
• 3.5+4.5=8
• 8=8
• C-D=6........(2)
• 9.5-3.5=6
• 6=6
• A+C=13.......(3)
• 3.5+9.5=13
• 13=13
• B+D=8......(4)
• 4.5+3.5=8
• 8=8

☆HENCE, VERIFIED☆