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Determinati numarul natural X , care verifica egalitatile:

DAU 54 PUNCTE PLS REPEDE MAINE AM TEZA CELE MAI BUNE RASPUNSURI LE VREAU . Multumesc Anticipat


Determinati Numarul Natural X Care Verifica Egalitatile DAU 54 PUNCTE PLS REPEDE MAINE AM TEZA CELE MAI BUNE RASPUNSURI LE VREAU Multumesc Anticipat class=

Răspuns :

a)[(x+360:4)*5+700]:600=2
 [(x+90)*5+700]:600=2  /*600
 (x+90)*5+700=12000 /-700
(x+90)*5=  11300/:5
x+90=2260=>x=2260-90
                        x=   2170
b)[3*(3x+7)+9]:16=3 /*16
    3*(3x+7)+9= 48/-9
    3*(3x+7)=39/:3
    3x+7=13/-7
   3x=6=>x=2