OpenStudy (anonymous):

The sum of two numbers is 57. One of the numbers is 21. Which of the following equations could be used to find the other number? 57 = 2 + 21 21 = n – 57 n = 57 + 21 57 = n + 21 Not Here

7 years ago
OpenStudy (anonymous):

Andras thank you so much

7 years ago
OpenStudy (anonymous):

the last one 57=n+21 where n is the number we are looking for

7 years ago
OpenStudy (anonymous):

no problem, I have a spare few minutes :-)

7 years ago
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