Răspuns :
Mai intai amplifici pana ajungi sa ai numitorul comun 12 peste tot, adica cu: 12, 4, 6, 3, 12, 2, exact in ordinea in care sunt, iar mai apoi:
12x+20+12x+9=12x-10+7
24x+29=12x-3
24x-12x=-29-3
12x=-32
x=-32 supra 12
x= -8 supra 3
12x+20+12x+9=12x-10+7
24x+29=12x-3
24x-12x=-29-3
12x=-32
x=-32 supra 12
x= -8 supra 3
[tex]\frac{x+5}{3}+2x+\frac{3}{4}=x-\frac{5}{6}+\frac{7}{12}\;\;|_{\cdot12}\\
4x+20 + 24x + 9 =12x-10+7\\ 4x+24x-12x=-20-12+7\\
16x=-25\;\;\rightarrow\;\;x=\,-25/16[/tex]
4x+20 + 24x + 9 =12x-10+7\\ 4x+24x-12x=-20-12+7\\
16x=-25\;\;\rightarrow\;\;x=\,-25/16[/tex]