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44 votes
Select all the equations where c=9 is a solution. Choose 2 answers:

A. 4 - c =5
B. 20 = 14 + c
C. 15 = c - 6
D. C/3 = 3
E. 36 = 4c

User Vadim Sentiaev
by
2.7k points

2 Answers

27 votes
27 votes

Answer:

D and E

Explanation:

User Baris Demiray
by
2.7k points
5 votes
5 votes

Answer:

D and E

Explanation:

A.


\sf 4-c=5


\sf 4-c-4=5-4


\sf -c=1


\sf \cfrac{-c}{-1}=\cfrac{1}{-1}


\sf c=-1

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B.


\sf 20 = 14 + c


\sf 14+c=20


\sf 14+c-14=20-14


\sf c=6

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C.


\sf 15 = c - 6


\sf c-6=15


\sf c-6+6=15+6


\sf c=21

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D.


\sf \cfrac{c}{3}=3


\sf \cfrac{3c}{3}=3*\:3


\boxed{\sf c=9}

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E.


\sf 36 = 4c


\sf 4c=36


\sf \cfrac{4c}{4}=\cfrac{36}{4}


\boxed{\sf c=9}

Therefore, D and E !

_________________

Hope this helps!

Have a great day!

User Mkarasek
by
3.0k points