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 Afla numarul x din egalitati (x+3)*2-81/9=1


Răspuns :

(x+3)*2-81/9=1
(x+3)*2-9=1
(x+3)*2=9+1
(x+3)*2=10
x+3=10:2
x+3=5
x=5-3
x=2

2x+6-9=1 2x=1+9-6 2x=4 x=4/2 x=2