(3x+5x)×18=144; (7y-3y)÷8=17; (6a+a)÷13=14; 48÷(9b-b)=2 - вопрос №3270517351814473817613144892 от maxim880055535351 07.02.2020 19:46

Question

Математика: (3x+5x)×18=144; (7y-3y)÷8=17; (6a+a)÷13=14; 48÷(9b-b)=2

maxim880055535351 · Answer

(3х+5х)*18=1448х * 18 = 1448х=144 :188х = 8х=8:8х=1(7у-3у):8=174у :8=174у= 8*174у=136у=136:4у= 34(6а+а) :13=147а :13 = 147а = 13*147а=182а = 2648: (9ь - ь) = 248 : 8ь = 28ь = 48:28ь = 24ь = 24:8ь=3...