Question

valor Y de
A)3X/10=90/2

B)15/X=30/6
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Answer 1

Resposta:

a) 3x/10 = 90/2

3x/10 . 10 = 90/2 . 10

3x = 450

x = 450:3

x = 150

b) 15/x = 30/6

15 . 6 = x . 30

90 = x . 30

x . 30 = 90

x = 90:30

x = 3