1) x:5=600:6 x:5=100
x=100•5
=500
500:5=600:6
100=100

2) y-98=325+420
y-98=745
y=745+98
y=843
843-98=325+420
745=745
3) 650-y=65•2
650-y=130
y=650-130
y=520
650-520=65•2
130=130

) x:5=600:6

x:5=100

x=100•5

=500

500:5=600:6

100=100

2) y-98=325+420

y-98=745

y=745+98

y=843

843-98=325+420

745=745

3) 650-y=65•2

650-y=130

y=650-130

y=520

650-520=65•2

130=130

да всё верно 1 = 500

2 = 843

3 = 520