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kamilla100901
@kamilla100901
July 2022
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помогите
1)(3х+5)*4+(9х-5)*5=6*20+(3х+1)*10
2) 5-9х-6+10х=20-12х
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viktoriabarcev
1)12x+20+45x-25=120+30x+10
12x+45x-30x=-20+25+120+10
27x=135
x=5
2)5-9x-6+10x=20-12x
-9x+12x+10x=20+6-5
13x=21
x=21/13
2 votes
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Answers & Comments
12x+45x-30x=-20+25+120+10
27x=135
x=5
2)5-9x-6+10x=20-12x
-9x+12x+10x=20+6-5
13x=21
x=21/13