10(7y-2)=120
70y-20=120
70y=120+20
70y=140
y=140:70=2.
Ответ:
[tex]2[/tex]
Пошаговое объяснение:
[tex]10(7y-2)=120\\\\7y-2=120:10\\\\7y-2=12\\\\7y=12+2\\\\7y=14\\\\y=14:7\\\\y=2[/tex]
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Verified answer
10(7y-2)=120
70y-20=120
70y=120+20
70y=140
y=140:70=2.
Ответ:
[tex]2[/tex]
Пошаговое объяснение:
[tex]10(7y-2)=120\\\\7y-2=120:10\\\\7y-2=12\\\\7y=12+2\\\\7y=14\\\\y=14:7\\\\y=2[/tex]