Question

CALCULE O VALOR DE =
1) 2×+3=15
2) 7×-1=13
3) 2×-4=3
4) 4×+2=-18
5) 10×+1=-4-5
6) 5×-2=7+6
7) 9×=18
8) 7×=0
9) 48×=12
10) 35×=-105

Pfvr me respondam preciso de ajuda

Answer 1

Resposta:

1) x=6

2) x=2

3) x=7/2 ou x=3,5

4) x=-5

5) x=-1

6) x=3

7) x=2

8) x=0

9) x=1/4 ou x=0,25

10) x=-3

Explicação passo-a-passo:

Answer 2

Resposta:

1) 2x + 3 = 15

  2x = 15 - 3

  2x = 12

    x = 12/2

    x = 6

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2) 7x - 1 = 13

   7x = 13 + 1

  7x = 14

    x = 14/7

   x = 2

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3) 2x - 4 = 3

  2x = 3 + 4

  2x = 7

    x = 7/2

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4) 4x + 2 = -18

   4x = -18 - 2

   4x = -20

     x = -20/4

     x = -5

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5) 10x + 1 = 4 - 5

   10x = 4 - 5 - 1

   10x = -1 - 1

   10x = -2

      x = -2/10

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6) 5x - 2 = 7 + 6

   5x = 7 + 6 + 2

   5x = 13 + 2

   5x = 15

     x = 15/5

    x = 3

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7) 9x = 18

     x = 18/9

     x = 2

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8) 7x = 0

     x = 0/7

     x = 0

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9) 48x = 12

        x = 12/48

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10) 35x = -105

         x = -105/35

        x = -3