Решите линейное уравнение |10 - (x-2y) = 18+4y |2x-3 (1+y) = 2 (3x-y) Решите уравнение 3x-8x²=0

1). {10 - (x - 2 y) = 18 + 4 y;

{2 x - 3 (1 + y) = 2 (3 x - y);

{10 - x + 2 y = 18 + 4 y; { - x - 2 y = 8; {x + 2 y = - 8; x = - 8 - 2 y;

{2 x - 3 - 3 y = 6 x - 2 y; { - 4 x - y = 3; {4 x + y = - 3;

4 ( - 8 - 2 y) + y = - 3;

- 32 - 8 y + y = - 3;

- 7 y = 29; y = - 4 1/7;

x = - 8 - 2 * ( - 29/7); x = - 8 + 58/7;

x = 2/7;

{x = 2/7; y = - 4 1/7;

2). 3 x - 8 x² = 0;

x (3 - 8 x) = 0;

x = 0;

3 - 8 x = 0; 8 x = 3;

x' = 3/8.