1) x : 7 = 13 : 14
x = 6,5
2) 3 : (2y) = 4 : 5
y = 1,875
3) (a - 5) : 4 = 3 : 8
a = 6,5
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1) x : 7 = 13 : 14
x = 6,5
2) 3 : (2y) = 4 : 5
y = 1,875
3) (a - 5) : 4 = 3 : 8
a = 6,5