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00foxy00
@00foxy00
July 2022
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решите уравнения:
1) 0,5(2х+4)=х+3
2)0,7+ 2/3x-1=0,7х
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Answers & Comments
lora3258
1) 1+2=х+3
3=х+3
х=-3+3
х=0
2) -0.3 +2/3х=0.7х
30*(-0.3)+ 30*2/3х=30*0.7х
-9+20х=21х
-21х+20х=9
-х=9
х=-9
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Answers & Comments
3=х+3
х=-3+3
х=0
2) -0.3 +2/3х=0.7х
30*(-0.3)+ 30*2/3х=30*0.7х
-9+20х=21х
-21х+20х=9
-х=9
х=-9