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Sa se rezolve ecuatiile :
a.[x]=2-x
b.[3x-6]=7
c.[x+1]=-4
d.x+1\2]=2
e.[2x]=x+1\2
f.

Răspuns :

[x]=2-x
x+x=2
2x=2
x=2:2
x=1
b)[3x-6]=7
3x=7+6
3x=13
x=13:3
x=13/3
c)[x+1]=-4
x=-4-1
x=-5
d)x+1/2=2
x=2-1/2
x=amplificam cu 2
x=2/2-1/2
x=1/2

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