(DAU COROANA) Rezolvati in R ecuatiitle:

Răspuns:
a) 4x+23=27
4x=27-23
4x=4
x=4/4
x=1
b)x:[tex]\sqrt{7}=2\sqrt{7}[/tex]
x*1[tex]\sqrt{7}=2\sqrt{7}[/tex]
x=2[tex]\sqrt{7} *\sqrt{7}[/tex]
x=2*7
x=14