SOLUTION: 5(2a+b)-(a+3b)

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Question 61208: 5(2a+b)-(a+3b)
Answer by 303795(602) About Me  (Show Source):
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5%282a+%2B+b%29-%28a+%2B+3b%29Multiply the 5 at the front of the first bracket through that bracket to get
10a+%2B+5b+-%28a+%2B+3b%29 Multiply the minus 1(the 1 is assumed) at the front of the second bracket through the bracket to get
10a+%2B+5b+-+a+-+3b Add like terms to get
9a+%2B+2b