Question

1/2x-10=4/8 -уравнение

Answer 1

12х = 48 + 10
х = 10  48        12
х = 21

Answer 2

1/2x-10=4/8
1/2x=4/8+10
1/2x=10 4/8
1/2x=10 1/2
1/2x=21/2
x=21/2 : 1/2
x=21