Предмет: Математика, автор: Marия11

помогите пожалуйстата! все задания надо

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Ответы

Автор ответа: сандро1712
0
1) 40х=37х40=1480
2)7у=3563
у=509
Автор ответа: Marия11
0
Можно полное решение
Автор ответа: MariaAbramki
0
18x+23x-x=40x=40•37=148
x=37
5y+2y=3563
7y=3563
y=3563:7
y=509
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