1)7 икс =-30+2 икс 2)16-18 икс =-25 икс -12 3)-17 икс+20=7 икс -28 4)20-2 икс=27+икс . Created by aili. matematika-ru

1)7 икс =-30+2 икс ...

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1)7 икс =-30+2 икс 2)16-18 икс =-25 икс -12 3)-17 икс+20=7 икс -28 4)20-2 икс=27+икс

Answers & Comments

aloynuchka 1) 17х=-30+2х
17х-2х=-30
15х=-30
х=-30:15
х=-2

2)16-18х=-25х-12
-18х+25х=-12-16
7х=-28
х=-28:7
х=-4

3)-17х+20=7х-28
-17х-7х=-28-20
-24х=8
х=-24:8
х=-3

4)20-2х=27+х
-2х-х=27-20
-3х=7
х=7:(-3)
х=-2,3

4 votes Thanks 3

ploshad polya 520 ga za sutki sobrali urozhaj s ploshadi sostavlyayushej 18 ploshadi

Answer

Answers & Comments

pomogite reshit uravneniya a 5h177h9 b 2472h09 v 5a 423a30 g 60

5 reshit uravnenieaf1b05e8d21a6df1a9c4f7b58768db78 51975

17 iks 302 ikse1d8b362f6d4a5af0c6340299fc9cc7a 557

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1 zadacha vpervyj den kombajnery ubrali pshenicu s 035 ploshadi polya vo vtoroj

=5...

035 zadacha

2301dd61cf8426af46e2f7cb50d93144e0 54787

kater proplyl po techeniyu 1001 km i 9947 km protiv techeniya skolko vremeni po

ploshad polya 520 ga za sutki sobrali urozhaj s ploshadi sostavlyayushej 18 ploshadi

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