Question

Реши уравнения 7/10-с=1/5; у: 8=1/10; у-1/12=5/6; а+1/6=7/12; х•1/3=1/5; а-4/9=1/3; 4: b=1/4; 5•y=1/2.

Answer 1

1)7/10-c=1/5
c=7/10-2/10
c=5/10
c=1/2
2)y:8=1/10
y=8/10
y=4/5
3)y-1/12=5/6
y=10/12+1/12
y=11/12
4)a+1/6=7/12
a=7/12-2/12
a=5/12
x*1/3=1/5
x=3/5
5)a-4/9=1/3
a=1/3+4/9
a=3/9+4/9
a=7/9
6)4:b=1/4
b=1
7)5*y=1/2
y=1/10