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15. Simplify: 5 (c-2d)-(d+3c)+(5c-8d) A) 7c-19d B) 13c-19d C) 7c-11d D) 13c-11d
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15. Simplify: 5 (c-2d)-(d+3c)+(5c-8d)

A) 7c-19d
B) 13c-19d
C) 7c-11d
D) 13c-11d

User Maytham Fahmi
by
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2 Answers

6 votes

5(c-2d)-(d+3c)+(5c-8d)=5c-10d-d-3c+5c-8d=\\\\=5c-3c+5c-10d-d-8d=(5-3+5)c+(-10-1-8)d=\\\\=\boxed{7c-19d}

Answer A)
User UrmLmn
by
8.8k points
3 votes
5(c-d)-(d+3c)+(5c-8d) = A) 7c-19d
User TreyE
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