Question

Hi i need help help me.

Plz don't answer only @babu0607 will.answer ​

Answer 1

☯ AnSwEr :

$\begin{lgathered}\begin{lgathered}\boxed{a} + \boxed{b} = 8 \\ + \: \: \: \: \: \: \: + \\ \boxed{c} - \boxed{d} = 13 \\ | | \: \: \: \: \: \: \: \: \: \: | | \\ 13\: \: \: \: \: \: \: \: 8\end{lgathered}\end{lgathered}$

Now, we get

a + b = 8 ......(1)

a + c = 13 .......(2)

b + d = 8 ......(3)

c - d = 6.......(4)

$\rule{200}{2}$

↪From equation 1.

a = 8 - b

★ Put value of a in equation 2.

→ 8 - b + c = 13

→ -b + c = 13 - 8

→ -b + c = 5 .......(5).

$\rule{200}{2}$

↪From equation 3.

d = 8 - b

★ Put value of b in equation 4.

→ c - (8 - b) = 6

→ c -8 + b = 6

→ c + b = 6 + 8

→ c + b = 14 .......(6)

$\rule{200}{2}$

↪From equation 5.

c = 5 + b

★ Put value of c in equation 6.

→ 5 + b + b = 14

→ 2b + 5 = 14

→ 2b = 14 - 5

→ 2b = 9

→ b = 9/2

→ b = 4.5

$\Large{\implies{\boxed{\boxed{\sf{b = 4.5}}}}}$

$\rule{200}{2}$

★ Put value of b in equation 1.

→ a + 4.5 = 8

→ a = 8 - 4.5

→ a = 3.5

$\Large{\implies{\boxed{\boxed{\sf{a = 3.5}}}}}$

$\rule{200}{2}$

★ Put value of a in equation 2.

→ 3.5 + c = 13

→ c = 13 - 3.5

→ c = 9.5

$\Large{\implies{\boxed{\boxed{\sf{c = 9.5}}}}}$

$\rule{200}{2}$

★ Put value of c in equation 4.

→ 9.5 - d = 6

→ -d = 6 - 9.5

→ -d = -3.5

→ d = 3.5

$\Large{\implies{\boxed{\boxed{\sf{d= 3.5}}}}}$

Now, we get

$\begin{lgathered}\begin{lgathered}\boxed{3.5} + \boxed{4.5} = 8 \\ + \: \: \: \: \: \: \: \: \: \: \: + \\ \boxed{9.5} - \boxed{3.5} = 13 \\ | | \: \: \: \: \: \: \: \: \: \: \: \: \: \: | | \\ 13\: \: \: \: \: \: \: \: \: \: \: \: 8\end{lgathered}\end{lgathered}$

Answer 2

$\huge\mathbb{ \red{SOLUTION}}$

$\boxed{3.5} + \boxed{4.5} = 8 \\ \: \: \: + \: \: \: \: \: \: \: \: \: \: + \\ \boxed{9.5} - \boxed{3.5} = 6 \\ \: \: \: || \: \: \: \: \: \: \: \: \: \: \: || \\ \: \: 13 \: \: \: \: \: \: \: \: \: \: 8$

HERE ,

✏a+b=8-------(1)

✒c-d=6--------(2)

✏a+c=13-------(3)

✒b+d=8-------(4)

_________________________

✏(1)=>a=8-b

value of a put in(3)

✒8-b+c=13

=>-b+c=13-8

=>-b+c=5--------(5)

✏(4)=>d=8-b

value of d put in (2)

✏c-(8-b)=6

=>c-8+b=6

=>c+b=6+8

✒=>c+b=14----------(6)

➡from equation 5

✏c=5+b

value of c put in (6)

5+b+b=14

=>5+2b=14

=>2b=14-5

$= > b = \frac{14 - 5}{2} \\ = > \boxed{b = \frac{9}{2} = 4.5}$

________________________

value of b put in 1

✒a+4.5=8

=>a=8-4.5

$\boxed{=>a=3.5}$

________________________

value of a put in (3)

a+c=13

=>c=13-3.5

$\boxed{=>c=9.5}$

________________________

value of c put in 6

c+b=14

=>9.5+b=14

=>b=14-9.5

$\boxed{ = > b = 9.5}$

________________________

value of c put in 2

c-d=6

=>9.5-d=6

=>-d=6-9.5

=>-d=-3.5

=>d=3.5

________________________