90-3х=39 12х+2=62 у:7=7 2у:8=2 3х:5=6 2х+4х=90 7а+3а+2=42 26-2а=0 7+а=36 Help me. Created by bobrowskyegor. matematika-ru

90-3х=39 12х+2=62 у:7=7 2у:8=2 3х:5=6 2х+4х=90 7а+3а+2=42 26-2а=0 7+а=36 Help me...

bobrowskyegor @bobrowskyegor

July 2022 2 3 Report

90-3х=39
12х+2=62
у:7=7
2у:8=2
3х:5=6
2х+4х=90
7а+3а+2=42
26-2а=0
7+а=36
Help me

Gem1n1 1)17
2)5
3)49
4)8
5)10
6)15
7)4
8)13
9)29

1 votes Thanks 1

aleksandruklili 90-3х=39
3х=90-39
3х=51
х=51:3
х=17

12х+2=62
12х=62-2
12х=60
х=60:12
х=5

у:7=7
у=7*7
у=49

2у:8=2
2у=2*8
2у=16
у=16:2
у=8

3х:5=6
3х=6*5
3х=30
х=30:3
х=10

2х+4х=90
6х=90
х=90:6
х=15

7а+3а+2=42
10а+2=42
10а=42-2
10а=40
а=40:10
а=4

26-2а=0
2а=26
а=26:2
а=13

7+а=36
а=36-7
а=29

2 votes Thanks 1

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Answers & Comments

90 3h39 12h262 u77 2u82 3h56 2h4h90 7a3a242 26 2a0 7a36 help me30da08819eb5454db1c50dd26e4080da 65914

90 3h39 12h262 u77 2u82 3h56 2h4h90 7a3a242 26 2a0 7a36 help me

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