Решите уравнения a) 9.5x-(3.2x+1.8x)+3.75=6.9 б) 11.3y-(9.7y-0.8y)+7.4=17 по действиям
185
248
Ответы на вопрос:
9.5х-(3.2х+1.8х)+3.75=6.9 9.5х-5х+3.75=6.9 4.5х+3.75=6.9 4.5х=6.9-3.75 4.5х=3.15 х=3.15: 4.5 х=0.7 11.3у-(9.7у-0.8у)+7.4=17 11.3у-8.9у+7.4=17 2.4у+7.4=17 2.4у=17-7.4 2.4у=9.6 у=9.6: 2.4 у=4
А) 9.5x-(3.2x+1.8x)+3.75=6.9 9.5x-5x+3.75=6.9 4.5x+3.75=6.9 4.5x=6.9-3.75 4.5x=3.75 x=0.7б) 11.3y-(9.7y-0.8y)+7.4=17 11.3y-8.9y+7.4=17 2.4y+7.4=17 2.4y=17-7.4 2.4y=9.6 y=4
Популярно: Математика
-
guzel3221101.11.2021 14:19
-
neganov02.12.2021 07:38
-
nikitarin019.01.2020 19:07
-
MaxZvanie29.07.2021 07:58
-
Владивостокер05.07.2020 04:57
-
karinalove928.05.2021 09:05
-
katy51225.12.2021 10:25
-
contemplation2229.08.2021 13:12
-
Опз215.08.2022 00:20
-
pudgebude22.10.2022 11:04