F)17x-34=-170
17x = -170+34
17x=-136
x = -(136:17)
x = -8
Б)7+5=9x-11
-9x=-11-5-7
-9x=-23
x = (-23):(-9)
x = 2 5/9
В)5(х-6)=15(х-8)
5x-30=15x-120
5x-15x=-120+30
-10x=-90
x = (-90):(-10)
x = 9
