Tìm y biết:(2/11*13+2/13*15+2/15*17+2/17*19+2/19*21)*462-y=19
Tìm y biết: (2/11*13 + 2/13*15 + 2/15*17 + 2/17*19 + 2/19*21) * 462 - y = 19
(2/11*13+2/13*15+2/15*17+2/17*19+2/19*21)*462-y=19
2/(11*13)+2/(13*15)+2/(15*17)+2/(17*19)+2/(19*21)*462-y=19
tim y biet [2/11*13+2/13*15+2/15*17+2/17*19+2/19*21]*462-y=19
Tìm x biết (2/11*13+2/13*15+2/15*17+2/17*19+2/19*21)*462 - x = 19
[2\11*13+2\13*15+2\15*17+2\17*19+2\19*21]*462-y=19
ai giải giúp mk đầu tiên mk tick cho
(2/11×13+2/13×15+2/15×17+2/17×19+2/19×21)×462-x=19
tìm x
(2/11 * 13 +2/13 * 15 + 2/15 * 17 +2/17 * 9 +2/19*21)* 4+2 - y =19
( * là nhân nha)