Question

люди прошу
выразите переменную х через у
1) Х+5У=3 2) 2Х+4У= -12
2) -2Х+У=8 3) Х+3У=6
5) 5х+у+10 6) -х+8у=-3

Answer 1

1)
$x + 5y = 3 \ x = 3 - 5y$
2)
$2x + 4y = - 12 \ 2x = - 12 - 4y \ x = - 6 - 2y$
3)
$- 2x + y = 8 \ 2x = y - 8 \ x = frac{y}{2} - 4$
4)
$x + 3y = 6 \ x = 6 - 3y$
5)
$5x + y = 10 \ 5x = 10 - y \ x = 2 - frac{y}{5}$
6)
$- x + 8y = - 3 \ x = 8y + 3$