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лиза1039000
@лиза1039000
July 2022
1
5
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периметр прямоугольника равен 54 см , а его ширина на 3 см меньше длины. найдите стороны прямоугольника!
надо решить уравнением .
Р=(х+х+3)8*2=54
2Х+3=54/2
2Х+3=27
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alisa11829266
2x+3=27
2x=27-3
2x=24
x=24:2
x=12
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Answers & Comments
2x=27-3
2x=24
x=24:2
x=12