Question

Which best describes the solution to 4 – 7? Because –4 + (–7) is an equivalent expression, the answer is –11. Because 4 + (–7) is an equivalent expression, the answer is –3. Because 4 + (–7) is an equivalent expression, the answer is –11. Because –4 + (–7) is an equivalent expression, the answer is –3.


im taking a test rn so if someone could help that would be great

Answer 1

question would be: Because 4 + (-7) is an equivalent expression, your answer is -3. The reason for this can be described using integers. So lets say you have $4. You owe your brother $7. Since you don't have enough to pay him, you can pay him all your money, but you still have to pay him $3 more. This means technically your balance is $-3, cause if he needs the money, the second you get it he will ask for it. Sorry if this isn't too great of an example, not sure what else I could think of. Pretty much remember when subtracting a number, you can add the negative of the number, because that is the same thing.

Answer 2

Answer:

- 3

Step-by-step explanation:

4 - 7 = - 3

Imagine this :

An element has charge + 4.

This means it has 4 more protons than electrons.

Now 7 electrons are added.

So technically :

Number of protons is now less 3 less than electrons.

Electrons carry negative charge.

Hence the charge will be - 3 .

This explains how 4 - 7 = - 3

Theoretically :

plus + minus = minus .

+ a + ( - b ) = a - b

Thus :

- ( - a + b )

= - ( b - a )

Here :

4 - 7

= - ( 7 - 4 )

= - 3

Hope it helps .