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teodorsemenov
@teodorsemenov
July 2022
1
20
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2x=18-x
7x+3=30-2x
помогите пж
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dashaaal
2х=18-х
2х+х=18
3х=18
х=6
7х+3=30-2х
7х+2х=30-3
9х=27
х=3
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Answers & Comments
2х+х=18
3х=18
х=6
7х+3=30-2х
7х+2х=30-3
9х=27
х=3