Felicia F

27 November 2023 14:58

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Felicia F

27 November 2023 14:58

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27 November 2023 15:56

Jawaban terverifikasi

<p>a. 13x - 5 = 2x - 10</p><p>&nbsp; &nbsp; &nbsp;13x - 2x = 10 + 5</p><p>&nbsp; &nbsp; &nbsp;11x = 15</p><p>&nbsp; &nbsp; &nbsp;x = 15/11</p><p>&nbsp; &nbsp; &nbsp;x = 1 4/11</p><p>&nbsp;</p><p>b. 5(2x - 4) = 2(3x - 4)</p><p>&nbsp; &nbsp; &nbsp;10x - 20 = 6x - 8</p><p>&nbsp; &nbsp; &nbsp; 10x - 6x = -8 + 20</p><p>&nbsp; &nbsp; &nbsp; 4x = 12</p><p>&nbsp; &nbsp; &nbsp; x = 12 : 4 = 3</p><p>&nbsp;</p><p>c. 4x + 7 = 12</p><p>&nbsp; &nbsp; &nbsp;4x = 12 - 7</p><p>&nbsp; &nbsp; &nbsp;4x = 5</p><p>&nbsp; &nbsp; &nbsp; x = 5/4</p><p>&nbsp; &nbsp; &nbsp; x = 1¼</p><p>&nbsp;</p><p>d. 3x + 2(2x + 1) = 15</p><p>&nbsp; &nbsp; &nbsp;3x + 4x + 2 = 15</p><p>&nbsp; &nbsp; &nbsp;7x = 15 - 2</p><p>&nbsp; &nbsp; &nbsp; 7x = 13</p><p>&nbsp; &nbsp; &nbsp; x = 13/7</p><p>&nbsp; &nbsp; &nbsp; x = 1 6⁄7</p>

a. 13x - 5 = 2x - 10

     13x - 2x = 10 + 5

     11x = 15

     x = 15/11

     x = 1 4/11

 

b. 5(2x - 4) = 2(3x - 4)

     10x - 20 = 6x - 8

      10x - 6x = -8 + 20

      4x = 12

      x = 12 : 4 = 3

 

c. 4x + 7 = 12

     4x = 12 - 7

     4x = 5

      x = 5/4

      x = 1¼

 

d. 3x + 2(2x + 1) = 15

     3x + 4x + 2 = 15

     7x = 15 - 2

      7x = 13

      x = 13/7

      x = 1 6⁄7


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