Решение на фотографии .
1) 7(3x+4)=22*28
21х+28=616
21х=588
х=28
3) 7(2х-1)=3(4х-1)
14х-7=12х-3
14х-12х=-3+7
2х=4
х=2
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Verified answer
Решение на фотографии .
Verified answer
1) 7(3x+4)=22*28
21х+28=616
21х=588
х=28
3) 7(2х-1)=3(4х-1)
14х-7=12х-3
14х-12х=-3+7
2х=4
х=2