Решите уравнение 2.7+3y=9(y-2.1) 0.3(8-3y)=3.2-0.8(y-7) - вопрос №2739210383320879480011 от NightyMigly 27.03.2020 05:32

Question

Алгебра: Решите уравнение 2.7+3y=9(y-2.1) 0.3(8-3y)=3.2-0.8(y-7)

NightyMigly · Answer

2.7+3у=9(у-2.1)2.7+3у=9у-18.93у-9у=-18.9-2.7-6у=-21.6у=3.60.3(8-3у)=3.2-0.8(у-7)2.4-0.9у=3.2-0.8у+5.62.4-0.9у=8.8-0.8у-0.9у=0.8у=8.8-2.4-0.1у=6.4у=-64...