Подсобите x+3/10=1/5 x+2/5=3x-5/4 Подробно

Question

Подсобите
x+3/10=1/5
x+2/5=3x-5/4
Подробно

Answer 1

Х+3/10=1/5; Х=1/5-3/10; Х=2/10-3/10; Х=-1/10

Answer 2

1)
х+3/10=1/5
х=1/5-3/10
х=2/10-3/10
х=-1/10
2)
х+2/5=3х-5/4
х-3х=-5/4-2/5
-2х=-25/20-8/20
-2х=-33/20
х=(-33/20):(-2)
х=33/20*1/2
х=33/40