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s2008m [1.1K]
3 years ago
14

21 times a number increased

Mathematics
2 answers:
IRINA_888 [86]3 years ago
8 0

Answer:

3

Step-by-step explanation:

21x + 6 = 3x + 60  subtract 3x from both sides

(21x-3x) + 6 = 60

18x + 6 = 60 subtract 6 from both sides

18x= 60-6

18x= 54 divide by 18

x =3

Leokris [45]3 years ago
6 0

Answer: the number is 3

Step-by-step explanation:

This can be written mathematically as

21y + 6 = 60 + 3y

21y - 3y = 60 - 6

18y = 54

y = 54/18 = 3

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