SOLUTION: 3(2a+5)+2(3-a) ;a=4

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Question 94470: 3(2a+5)+2(3-a) ;a=4
Answer by tutorcecilia(2144) About Me  (Show Source):
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3(2a+5)+2(3-a) [use the distibutive property to multiply]
6a+15+6-2a [combine like-terms]
4a+21 [plug-in (a=4) and solve]
4(4)+21
16+21
37