Question

a)3x+5=8

b)2x-7=-10

c)11x+17=10x+13

d)5x-27=-4x
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Answer 1

Resposta:

Explicação passo a passo:

$a)$

  $3x+5=8$

  $3x=8-5$

  $3x=3$

    $x=3/3$

    $x=1$

$b)$

  $2x-7=-10$

  $2x=-10+7$

  $2x=-3$

   $x=-\frac{3}{2}$

$c)$

  $11x+17=10x+13$

  $11x-10x=13-17$

        $x=-4$

$d)$

   $5x-27=-4x$

   $5x+4x=27$

       $9x=27$

         $x=27/9$

         $x=3$

 

Answer 2

Explicação passo-a-passo:

$a)3x + 5 = 8 \\ 3x = 8 - 5 \\ 3x = 3 \\ x = \frac{3}{3} = 1$

$b)2x - 7 = - 10 \\ 2x = - 10 + 7 \\ 2x = - 3 \\ x = - \frac{3}{2}$

$c)11x + 17 = 10x + 13 \\ 11x - 10x = 13 - 17 \\ x = - 4$

$d)5x - 27 = - 4x \\ 5x + 4x = 27 \\ 9x = 27 \\ x = \frac{27}{9} = 3$