Question

решите уравнение (3x +5 x )умножить 18 = 144.
(7у-3у):8=17

Answer 1

(3х+5х)×18=144
8х×18=144
8х=144÷18
8х=8
х=8÷8
х=1
$$$$$$$$$$$
(7у-3у)÷8=17
4у=17×8
4у=136
у=136÷4
у=34

Answer 2

8х=144:18
8х=8
х=8:8=1
(3*1+5*1)*18=144