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Mathematics 7 Online
OpenStudy (anonymous):

When 5 is added to 2 times a number, the result is 45. Find the number. A. 20 B. 45 C. 5 D. 2

OpenStudy (bibby):

Translate the problem into an equation. 2 times a number (some unknown number) is 2x 5 more than that is 2x + 5

OpenStudy (anonymous):

2

OpenStudy (anonymous):

??

OpenStudy (bibby):

Solve 2x+5 = 45

OpenStudy (anonymous):

20

OpenStudy (bibby):

yep

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