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a)4*x-3=17
b)5*x+3=28
c)12-2*x=6
d)x-5:5=5*5


Răspuns :

a) 4x=17+3
4x=20
x=5

b) 5x=28-3
5x=25
x=5

c) -2x=6-12
-2x=-6 |(-1)
2x=6
x=3

d) x-1=25
x=25+1
x=26 Ce n ai inteles spune.