Question

Решить уровнем 7 класса cрочно даю 50 балов!!!
$\left \{ {{6 (x-3)= 7y-1} \atop {2 (y+6 )=3x+2}} \right.$

Answer 1

$\displaystyle\bf\\\left \{ {{6(x - 3) = 7y - 1} \atop {2(y + 6) = 3x + 2 }} \right. \\ \displaystyle\bf\\\left \{ {{6x - 18 - 7y = - 1} \atop {2y + 12 - 3x = 2 }} \right. \\ \displaystyle\bf\\\left \{ {{6x - 7y = 17} \atop { - 3x + 2y = - 10 \: \: | \times 2 }} \right. \\ \displaystyle\bf\\ + \left \{ {{6x - 7y = 17} \atop { - 6x + 4y = - 20 }} \right. \\ \\ - 7y + 4y = 17 - 20 \\ - 3y = - 3 \\ y = - 3 \div ( - 3) \\ y = 1 \\ \\ 6x - 7 \times 1 = 17 \\ 6x - 7 = 17 \\ 6x = 17 + 7 \\ 6x = 24 \\ x = 24 \div 6 \\ x = 4$

Ответ: ( 4 ; 1 )

Answer 2

Ответ:

На фото

Объяснение:

На фото.........