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3 years ago

7

The sum of 16 and a number x is equal to 20

2 answers:

Andreyy893 years ago

6 0

The sum of 16 and 4 is equal to 20.
This is how I know:
20-16=4
How do I know this?
Sum means to <u>add</u>. To get the sum of something that equals another number, you must see what number adds up with 16 to get 20. So, this means that 16+4=20.

Hope this helps. <3 :)

baherus [9]3 years ago

5 0

" the sum " means add

16 + x = 20 <= ur equation
x = 20 - 16
x = 4 <== the number

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