Question

срочно, даю 40 балов!!!!!!!!!

Answer 1

Ответ:

$x = 15 \: \: \: \: \: t = 12$

Объяснение:

$\frac{x + t}9 - \frac{x - t}{3} = 2 \\ \frac{2x - t}{6 } - \frac{3x + 2t}{ 3} = - 20 \\ \\ x = - 9 + 2t \\ - 18 + 3t + 54 - 16t = - 120 \\ \\ x = - 9 + 2t \\ 36 - 13t = - 120 \\ \\ x = - 9 + 2t \\ t = 12 \\ \\ x = - 9 + 24 \\ t = 12 \\ \\ x = 15 \\ t = 12$

Answer 2

Ответ:

x = -9 + 2t

2x - t / 6 - 2x+2/ 3 = -20

2(-9+2t) -t / 6 - 2(-9+2t)+2 / 3 =-20

t= 134 / 5

x= -9+2 * 134/5

x= 223 / 5

(t, x) = (134 / 5. 223 / 5)

Объяснение:

/ - дробь