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ksy19991999
@ksy19991999
June 2022
2
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castaway1
12+15х=42
15х=42-12
15х=30
х=30:15
х=2
0 votes
Thanks 2
castaway1
в первой строчке 3/5*20 и 3/4*20 (если не понятно)
delikenaa
(3/5 + 3/4x) * 20 = 42
20*3/5 + 20*3/4x = 42
12 + 15x = 42
15x = 42 - 12
15x = 30
x = 30 : 15
x = 2
Ответ:2
0 votes
Thanks 1
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Answers & Comments
15х=42-12
15х=30
х=30:15
х=2
20*3/5 + 20*3/4x = 42
12 + 15x = 42
15x = 42 - 12
15x = 30
x = 30 : 15
x = 2
Ответ:2