The originial question: Expand the expression 2(r-4)+5(r+2). Express your answer in simplest form.
asked May 16, 2017 in Pre-Algebra Answers by anonymous
2(r-4)+5(r+2) 2r - 8 + 5r + 10 2r + 5r - 8 + 10 7r - 8 + 10 Answer: 7r + 2

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1 Answer

Expand the expression 2(r-4)+5(r+2)

2(r - 4) + 5(r + 2)       multiply out the brackets

2r - 8 + 5r + 10          group like items together

(2r + 5r) + (-8 + 10)   combine like items

7r + 2

answered May 17, 2017 by Fermat Level 11 User (78,340 points)
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