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Ma gandesc la un numar,il inmultesc cu 5,la produs adaug 50, suma o injumatatesc,apoi scad 34 si obtin1

Răspuns :

(x*5+50)/2-34=1
5/2*x+25-=35
5/2*x=10
x=4
(ax5+50):2-34=1. (ax5+50):2=1+34=35. ax5+50=35x2. ax5+50=70. ax5=70-50 ax5=20 a=20:5. a=4