quanto vale X?

Question

Sapendo che: <(15/28+9/14+X) : X = (9/4-1/2) : {4/7[7/12:(11/12)]+7/11}>, quanto vale X?     risposta 11/7

Kea · Accepted Answer

[attach]57879[/attach]

LucianoP · Answer

(15/28 + 9/14 + x)/x = (9/4 - 1/2)/(4/7·(7/12/(11/12)) + 7/11)

(x + 33/28)/x = 7/4/(4/7·(7/11) + 7/11)

(x + 33/28)/x = 7/4/(4/11 + 7/11)

(x + 33/28)/x = 7/4/1

7/4·x = x + 33/28

3/4·x = 33/28

x = 11/7

LucianoP

(@lucianop)

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17/10/2023 10:46