Răspuns:
a)
2x-4/5 + 4x + 14 / 15 = -1/10 + 2x+7/10
6(2x-40 = 2(4x+14) = -3+3(2x+7)
12x-24+8x+28=-3+6x+21
20x+4 = 18 + 6x
20x-6x+4 = 18-4
14x=14
x= 1
b)
([tex]\sqrt{2x}[/tex]+3) x 6 = 3(9-[tex]\sqrt{2x}[/tex])
[tex]\sqrt{2x}[/tex]=3-2[tex]\sqrt{2x\\}[/tex]
2x=9-12[tex]\sqrt{2}[/tex]x+8[tex]x^{2}[/tex]
x= 1+6[tex]\sqrt{2}[/tex]-[tex]\sqrt{1+12\sqrt{2} }[/tex]/8
