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Ronch [10]
3 years ago
11

Adding 6 to triple a number gives 21

Mathematics
2 answers:
ivolga24 [154]3 years ago
7 0

Step-by-step explanation:

Let the required number be x.

\therefore \: 3x + 6 = 21 \\

inna [77]3 years ago
3 0
3x+6=21 x would equal 5 because 3 x 5 = 15 and 15 + 6 = 21! answer: 5
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