Question

Решите уравнение пожалуйста с объяснением
14.4:(9.9 -3*х)*0.51=2.448
32.4 :(7.06х -101.2)*1.8=1.458
Заранее спасибо

Answer 1

1) $14.4:(9.9 -3*x)*0.51=2.448\frac{72}{5} :(frac{99}{10} -3x)*frac{51}{100} =2,488\frac{18}{5}:frac{99-30x}{10} *frac{51}{25} =2,488\frac{18}{5} *frac{10}{99-30x} *frac{51}{25} =2,488\18*frac{2}{3*(33-10x)} *frac{51}{25} =2,488\18*frac{2}{33-10x} *frac{17}{25} =2,488\frac{612}{25*(33-10x)} =2,488\612=61,2*(33-10x)\612=2019,6-612x\612x=2019,6-612\612x=1407,6\x=2,3$

2) $32.4 :(7.06x -101.2)*1.8=1.458\frac{162}{5} :(frac{353}{50} x-frac{506}{5} )*frac{9}{5} =1,458\frac{162}{5} :frac{353x-5060}{50} *frac{9}{5} =1,458\frac{162}{5} *frac{50}{353x-5060} *frac{9}{5} =1,458\162*frac{10}{353x-5060} *frac{9}{5} =1,458\162*frac{2}{353x-5060} *9=1,458\frac{2916}{353x-5060} =1,458\2916=1,458*(353x-5060)\2916=514,674x-7377,48\-514,674x=-7377,48-2916\-514,674x=-10293,48\x=20$