5х-2х=7+2
3х=9
х=9:3
х=3
Всё!
5x-2=2x+7
5x-2x=2+7
3x=9|3
x=3
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Verified answer
5х-2х=7+2
3х=9
х=9:3
х=3
Всё!
Verified answer
5x-2=2x+7
5x-2x=2+7
3x=9|3
x=3