Помогите решить. 1)9х+8х=136 2)38х-25х+18=200 3)83х-63х при х=37,607 4)25у+72у при у=84,505. Created by lenamajarskay. matematika-ru

Помогите решить. 1)9х+8х=136 2)38х-25х+18=200 3)83х-63х при х=37,607 4)25у+72у п...

Nikys9 1. 9x+8x=136
17x=136
x= 136/17
x=8
2. 38x-25x+18=200
13x=200-18
13x=182
x=14
3. 83x-63x=20x
при x=37.607 ==> 20*37,607 =752,14
4. 25y+72y=97y
при y=84.505 ==> 97*84.505=8196.985 (если округлить =8197)

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Валентинка1ru 9x+8x=136 38x-25x+18=200 20x
17x=136 13x=182 20*37.607
x=136/17 x=182/13 752.14
x=8 x=14

97y
97*84.505
8196.985

0 votes Thanks 0

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