Question

c) –2 · (x – 3) = 18 *


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Answer 1

Resposta:

-2x - (-6) = 18

-2x + 6 = 18

-2x = 18-6

-2x=12

2x=-12

x= -12/2

x= -6

Answer 2

Explicação passo-a-passo:    

–2 · (x – 3) = 18

  - 2× + 6 = 18

 -2× = 18 - 6 · (-1)

   2× = -18 + 6

   2× = - 12

     × = -12/2

     × = -6