Question

(-42)+[ ___+(-23)]=[ ___+15]+___​

Answer 1

Answer:

(-42)+[_+(-23)]=[_+15]+_

Answer 2

Answer:

(-42) +  -80   + (-23) = -80 + 15 + -80

Step-by-step explanation:

Explanation:

(-42)+[ ___+(-23)]=[ ___+15]+___​

Let us assume that the unknown value is denoted by x.

⇒ -42 + (x) + (-23) = x + (15) + x

⇒ x + (-42 - 23) = 2x + 15

As we know that "(-) + (-) = - "

⇒ x + (-65) = 2x + 15

And we also know that,product of negative and positive numbers is always be negative "+(-) = -"

⇒ -65 - 15 = 2x - x = x

⇒-80 = x

So, -80 is the required value

Final answer:

Hence, -80 is the required value of x.

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