Question

20. Fill in the value of A,B,C & D by suitable integer
5+A=0
-1/8×B=1
C+10=10
D×-7=-7​

Answer 1

Answer:

A= -5

B= -8

C= 0

D= 1

explanation

5+ A= 0

=> A= 0-5

=>A= -5

-1/8×B= 1

=> B= 1÷ -1/8

=>B=-8

C+10= 10

=> C= 10-10

=>C= 0

D×-7= -7

=>D= -7/-7

=>D= 1

Answer 2

Answer:

So , the value of A =-5, B= -8 , C=0 and D = 1.

Step-by-step explanation:

Explanation:

Given, 5 + A = 0, $\frac{-1}{8 }$ × B = 1, C + 10 = 10 and  D × -7 =-7

Let,5 + A = 0.......(i) ,

$\frac{-1}{8 }$ × B = 1.........(ii) ,

C + 10 = 10.......(iii) and

D × -7 = -7. .........(iv)

Step 1:

On putting A = -5 in (i)we get,

5 + (-5) = 0

0 = 0

So, the value of A is -5 .

If we put B = -8  in (ii) we get,

$\frac{-1}{8}$ × B = 1

$\frac{-1}{8}$ × (-8) = 1

1 = 1

LHS = RHS

So, the value of B  is -8 .

If we put C = 0 in (iii)we get,

C+ 10 = 10

0 + C = 10

10 = 10 ⇒ LHS = RHS

So, the value of C = 0 .

Similarly , if we put D = 1 in(iv) we get,

D × -7 = -7

1 × -7 = -7

-7 = -7

LHS = RHS

Final answer:

Hence, the value of A =-5, B= -8 , C=0 and D = 1.

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