Решите уравнения:
1) x-1/2=3/4x
2) 9/5y=y+4
3) 3/4y-2/3=7/12y
(поже напишите решение)
1) x-1/2=3/4x
2) 9/5y=y+4
3) 3/4y-2/3=7/12y
(поже напишите решение)
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Answers & Comments
х-3/4х=1/2
1/4х=1/2
х=1/2:1/4
х=2
2)9/5у=у+4
9/5у-у=4
4у=4
у=4:4
у=1
3)3/4у-2/3=7/12у
3/4у-7/12у=2/3
1/6у=2/3
у=2/3:1/6
у=4