Ecuatii. 2x+1=x+3; 3x+2=2x+3; 4x-6=4-6x; 4x+6=6x+16


Răspuns :

[tex]2x + 1 = x + 3[/tex]

[tex]2x - x = 3 - 1[/tex]

[tex]x = 2[/tex]

[tex]3x + 2 = 2x + 3[/tex]

[tex]3x - 2x = 3 - 2[/tex]

[tex]x = 1[/tex]

[tex]4x - 6 = 4 - 6x[/tex]

[tex]4x + 6x = 4 + 6[/tex]

[tex]10x = 10 \: | \div 10[/tex]

[tex]x = 1[/tex]

[tex]4x + 6 = 6x + 16[/tex]

[tex]4x - 6x = 16 - 6[/tex]

[tex] - 2x = 10 \: | \div ( - 2)[/tex]

[tex]x = - 5[/tex]