해법
if the sum of a number and four is doubled, the result is nine less than the number
해법
솔루션 단계
Represent the number with
A.T.Q.:
해결 대상
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if the number of students in a class is 50, how many students are aged 19 years old?a number plus 7 more than the number is 29 what is the numbersome number plus 2the sum of two consecutive even integers is 242 find the two integersThe 원둘레 of a circular field is 229.22 yards. What is the diameter of the field? Use 3.14 for pi and do not round your answer.