Answer:
4
Explanation:
The opposite of a number is its negative. For example, the opposite of 3 would be -3.
Equipped with that information, we just need to find a number that is halve of 56, since if it stays the same except that its opposite, it will be 56 away.
Draw a number line. This can be a great help in problems like these.
If we divide 56 by 2, we get 28. Now the opposite of 28 is -28.
What happens if we add 56 to -28? We get positive 28.
Now that we know the number, we need to find out what number to multiply 7 by to get that.
The simple way to do this is to divide 28 by 7.
28/7=4.
7*4=28.
The answer is 4.
Hope this helps!