Выразите y через x

1) 2y-6=x

2) x+5y=1

3) x-y=5

Выразите x через y

1) 8y-2x=6

2) - 5y-x=-2

3) x-7y=8

1) 2y - 6 = x

y = (x + 6) : 2 = 0,5x + 3

2) x + 5y = 1

y = (1 - x) : 5 = 0,2 - 0,2x

3) x - y = 5

y = x - 5

1) 8y - 2x = 6

x = (8y - 6) : 2 = 4y - 3

2) - 5y - x = - 2

x = 2 - 5y

3) x - 7y = 8

x = 7y + 8