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kirill2617
@kirill2617
July 2022
2
2
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1) -x+(-12.7)= -4.3+5
2)-3.8+(-x)= -2.1
3)x-(-5+2.3)= -9.7
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Answers & Comments
AlexBrooks
1. -х-12.7=0.7
х=-13.4
2. -3.8-х=-2.1
3.8+х=2.1
х=-1.7
3. х+5-2.3=-9.7
х+2.7=-9.7
х=-13.4
1 votes
Thanks 1
yulikoschka
-х+(-12.7)=0.7
-12.7-0.7=х
-13.4=х
13.4+(-12.7)=0.7-проверка
-3.8+2.1=х
-1.7=х
х-(-2.7)=-9.7
х=-9.7-2.7
х=-12.4
-12.4-(-2.7)=-9.7
1 votes
Thanks 1
yulikoschka
в третьем примере пропустила 5,решение выше правильное
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Report "1) -x+(-12.7)= -4.3+5 2)-3.8+(-x)= -2.1 3)x-(-5+2.3)= -9.7 ПОМОГИТЕ ПОЖАЛУЙСТА С..."
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Answers & Comments
х=-13.4
2. -3.8-х=-2.1
3.8+х=2.1
х=-1.7
3. х+5-2.3=-9.7
х+2.7=-9.7
х=-13.4
-12.7-0.7=х
-13.4=х
13.4+(-12.7)=0.7-проверка
-3.8+2.1=х
-1.7=х
х-(-2.7)=-9.7
х=-9.7-2.7
х=-12.4
-12.4-(-2.7)=-9.7