(7/30 - 1/6) - X = 3/10 ПАМАГИТЕ УМАЛЯЮ

Question

(7/30 - 1/6) - X = 3/10 ПАМАГИТЕ УМАЛЯЮ

Answer 1

-х=3/10+1/6-7/30

-х=9/30+5/30-7/30

-х=7/30

Х=-7/30

Answer 2

1/15-х=3/10
-х=3/10-1/15
-х=7/30
х=-7/30