Question

Решите уравнения
(3х+5х)*18=144
(7у-3у):8=17

Answer 1

(3х+5х)•18=144; 54х+90х=144; 144х=144; х=1. (7у-3у):8=17; 0,875у-0,375у=17; 0,5у=17; у=34.