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Mathematics 15 Online
OpenStudy (anonymous):

Correct answer gets a medal. Solve 7(7x + 3) + 9(8 - x) Which problem is the problem above equal to? A. 40x + 93 B. 40x - 93 C. 40x + 51 D. 58x + 93

OpenStudy (anonymous):

The answer is A..take the 7 through the first set making 49x + 21. Take the 9 through the second parentheses making 72 - 9x. So you have 49x + 21 + 72 - 9x. Combine like terms to get 40x + 93

OpenStudy (anonymous):

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