Question

me ajude nessas equações

Answer 1

E)  $\frac{x}{2} + \frac{3x}{5} = 6$
      $\frac{5x+6x}{10} = 6$
      $10x = 60$
      $x = 6$

F)  $\frac{x}{5} + \frac{x}{2} = \frac{7}{10}$
     $\frac{7x}{10} = \frac{7}{10}$
     $7x = \frac{7}{10} . \frac{10}{1}$
     $x = 1$

G)  $5x-10 = \frac{x+1}{2}$
      $5x = \frac{x+1}{2} + \frac{10}{1}$
      $10x = x + 21$
      $x = \frac{21}{9} = \frac{7}{3}$