Question

Решите уравнение (по шагово)
2 1/3x=1/3-2/7
1/5+x==3/4:9/12​

Answer 1

2 1/3x = 1/3-2/7

7/3х = 1/3 - 2/7

7/3х = 1/21

х = 1/49.

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1/5+x= 3/4 : 9/12

1/5 + х = 3/4 × 12/9

1/5 + х = 3 × 3/9

1/5 + х = 1

х = 1 - 1/5

х= 4/5.