Question

П 1. Решите систему
{4x-y-24=2(5x-2y)
{3y-2=4--(x-y) ​

Answer 1

4х-у-24=2(5х-2у)  ,

3у-2=4-(х-у)

4x-y-24=10x-4y ,

3y-2=4-x+y

4x-y - 10x +4y = 24,

3y+x-y = 4+2

3y - 6x = 24,

2y + x = 6 / *6

3y - 6x =24,

12y + 6x = 36

+_________

15y = 60 / : 15

y=4

2y+x=6

2*4 + x = 6

x= 6- 8

x=-2

(-2;4)

Ответ :  (-2;4)