Question

resolva as equaçoes do 1° grau abaixo a)x+3=8 b)x-8=7 c)2x=8 d)2×-2= 6 e)3x-5=7​

Answer 1

Resposta:

a) 3× + 8

× = 8+3

× = 11

b) 8× - 7

× = 8-7

× = 1

c) × = 8 + 2

× = 10

d) × = 2 - 2

× = 0

e) 3× = 5 + 7

× = 3 + 12

× = 15

Answer 2

Resposta:

a) x + 3 = 8

   x = 8 - 3

   x = 5

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b) x - 8 = 7

   x = 7 + 8

   x = 15

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c) 2x = 8

     x = 8/2

    x = 4

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d) 2x - 2 = 6

   2x = 6 + 2

   2x = 8

     x = 8/2

     x = 4

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e) 3x - 5 = 7

  3x = 7 + 5

  3x = 12

    x = 12/3

    x = 4