Решите системы уравнений, срочно! 1/2x - 1/3y = 1 6x - 5y = 3 1/4x-1/3y = 4 4/5x - 3y = 7

1) 1/2x - 1/3y = 1
6x - 5y = 3

3x - 2y = 6 /*(-2)
6x - 5y = 3

-6x +4y = -12
6x - 5y = 3

-y=-9
y=9
6x-5*9=3
6x=48
x=8
ответ: (8,9)

2)
1/4x-1/3y = 4
4/5x - 3y = 7

3x-4y = 48
4x - 15y = 35

3x-4y = 48 /*(-4)
4x - 15y = 35 / *(3)

-12x+16y = -192
12x - 45y = 105

-29y=-87
y=3
3x-4*3 = 48
3x=48+12
3x=60
x=20
ответ: (20,3)