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C+2c+12=75 what is the value of c?
12.0k views
4 votes
C+2c+12=75
what is the value of c?

User Eric Nord
by
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2 Answers

2 votes
c+2c+12=75
3c + 12 = 75
3c = 75 - 12
3c = 63
с = 63 : 3
с = 21
______________________

3 × 21 + 12 = 75
63 + 12 = 75
75 = 75
User Ondrej Peterka
by
8.3k points
3 votes
Simplify c+2c+12 to 3c+12
3c+12=75
Subtract 12 from both sides
3c=75−12
Simplify 75−12 to 63
3c=63
Divide both sides by 3
c=63/3
Simplify 63/3 to 21
c=21
User GuidoG
by
7.4k points
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