1. 5(12-х)-11(4х-5)= 9(9-5х)-26
60-5х-44х-55=81-45х-26
-5х - 44х + 45х=81-26-60+55
-4х = 50
х = 50 : (-4)
х = -12,5
2. |х+4|= -5
x+4 = -5
x = -9
3. 2|x|+10=50
2x + 10 = 50
2x = 40
x = 20
