Mă poate ajuta cineva la aceste probleme? Vărog!

1.
[tex] \frac{ \times }{5}+ \frac{2}{3} = - 1 [/tex]

2.
[tex] \frac{2 \times }{7} - \frac{1}{2} = - 3 [/tex]

3.
[tex] \ - \frac{ \times }{2} + \frac{5}{4} = - \frac{1}{4} [/tex]

4.
[tex] \frac{2 \times }{5} - \frac{1}{3} = - 1 [/tex]

5.
[tex] - \frac{7 \times }{2} + \frac{1}{7} = - 4 [/tex]

6.
[tex] \frac{2 \times }{9} + \frac{1}{3} = - 5 [/tex]

7.
[tex] \frac{ - \times }{2} + \frac{1}{3} = - 1 + \times [/tex]

8.
[tex] - \frac{2 \ \times }{5} + \frac {1}{2} = \times - \frac {1}{10} [/tex]

9.
[tex] \frac{ \times }{2} - \frac{1}{3} = \times + \frac{1}{6} [/tex]

10.
[tex] - \frac{ \times }{5} + \frac{1}{4} = \frac{ \times }{2} + \frac{1}{10} [/tex]
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