Răspuns :
[tex]3x(m - 2) - 2mx + 9 = 5m + 56[/tex]
[tex]x = - 2[/tex]
[tex]3 \times ( - 2)(m - 2) - 2m \times ( - 2) + 9 = 5m + 56[/tex]
[tex] - 6(m - 2) + 4m + 9 = 5m + 56[/tex]
[tex] - 6m + 12 + 4m + 9 = 5m + 56[/tex]
[tex] - 6m + 4m - 5m = 56 - 12 - 9[/tex]
[tex] - 7m = 35 \: | \div ( - 7)[/tex]
[tex]m = - 5[/tex]
[tex]x = - 2[/tex]
[tex]3 \times ( - 2)(m - 2) - 2m \times ( - 2) + 9 = 5m + 56[/tex]
[tex] - 6(m - 2) + 4m + 9 = 5m + 56[/tex]
[tex] - 6m + 12 + 4m + 9 = 5m + 56[/tex]
[tex] - 6m + 4m - 5m = 56 - 12 - 9[/tex]
[tex] - 7m = 35 \: | \div ( - 7)[/tex]
[tex]m = - 5[/tex]
3 × ( - 2) ( m - 2 ) - 2 × ( - 2) m + 9 = 5 m + 56
- 6 m + 12 + 4 m + 9 = 5 m +56
- 2 m - 5 m = 56 - 21
- 7 m = 35 l : ( - 7 )
m = - 5
- 6 m + 12 + 4 m + 9 = 5 m +56
- 2 m - 5 m = 56 - 21
- 7 m = 35 l : ( - 7 )
m = - 5