Автор - niceshooooooooooooo
1) 8*(7х-3) = -48 * (3х + 2)
56х -24 = -144х-96
56х+144х = -96+24
200х = -72
Х = -0,36
2)
4,5*(8х+20)=6*(6х+15)
36х+90 = 36х + 90
36х-36х = 90-90
0х = 0
Х = 0
42
1)
-36*(6х+1) = 9*(4-2х)
-216х - 36 = 36 - 18х
-216х+18х = 36+36
-198х = 72
Х = -72/198
2)
3,2*(3х-2) = -4,8*(6-2х)
9,6х-6,4 = -28,8 + 9,6х
9,6х - 9,6х = -28,8 + 6,4
0 х = -22,4
Х = корней нет