Question

(-3) + [ -1 + (-7) ] = -3 + ___ = ____​

Answer 1

Answer:

$Hello!$

$=-3+(-1+(-7))\\= -3 +(-8)\\=-11$

Answer 2

Answer:

The value of the blank spaces is -8 and -11 respectively.

Step-by-step explanation:

Assumption,

Let the value of one of the blank be 'x' and that of another be 'y'.

Given,

-3 + [-1 + (-7)] = -3 + x = y

To find,

The values of 'x' and 'y'

Calculation,

-3 + [-1 + (-7)] = -3 + x = y

Here if we find the value of 'x' then automatically the value of 'y' is known.

So, first, we find the value of 'x'

-3 + [-1 + (-7)] = -3 + x

Now, considering L.H.S

L.H.S = -3 + [-1 + (-7)]

L.H.S = -3 + [-1 -7] (As when (+) is multiplied to (-) we get (-))

L.H.S = -3 + [-8]

L.H.S = -3 -8 (As when (+) is multiplied to (-) we get (-))

L.H.S = -11

Now, equating L.H.S and R.H.S we get:

-11 = -3 + x

⇒ -11 + 3 = x (Transposed -3 from R.H.S to L.H.S to become +3)

⇒ x = -8

Hence,

As -3 + x = y

⇒ -3 + (-8) = y

⇒ y = -3 -8 (As when (+) is multiplied to (-) we get (-))

⇒ y = -11

Therefore, the value of the blank spaces 'x' and 'y' are -8 and -11 respectively.

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