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laiz [17]
3 years ago
6

21/x =6/8, x is an unknown number what is it?

Mathematics
2 answers:
erma4kov [3.2K]3 years ago
4 0

Answer:

x = 28

Step-by-step explanation:

21/x = 6/8

cross multiply:             21 x 8 = 6 x x

Combine like terms:         168 = 6x

Divide both sides by 6:      28 = x

Ilia_Sergeevich [38]3 years ago
3 0

Answer:

x=28

Step-by-step explanation:

21/x = 6/8

21/x = 3/4

84=3x

3x/84

x=28

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