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1½x-4=x-6
³/₂x -x=-6+4
½x=-2/:½
x=-4
b)
x-5=1x +1
x-x=1+5
brak rozwiązania
c)
x-1=2
x=2+1
x=3
d)
x-3=x+1
x-x=1+3
brak rozwiązania
e)
5(x-1)=-x
5x-5=-x
5x+x=5
6x=5/:6
x=⁵/₆
f)
-1(-x-6)=-x
x+6=-x
2x=-6/:2
x=-3