Sekolah Menengah Pertama 1. 3 ( x - 2 ) = 5 x - 162. -6 ( 2 x + 1 ) = 3 ( x + 5 )​

yeseniakunzeulv – March 05, 2023

1. 3 ( x - 2 ) = 5 x - 16
2. -6 ( 2 x + 1 ) = 3 ( x + 5 )​

[tex] \rm3(x - 2) = 5x - 16[/tex]

[tex] \rm3x - 6 = 5x - 16[/tex]

[tex] \rm 3x - 5x = - 16 + 6[/tex]

[tex] \rm - 2x = - 10[/tex]

[tex] \rm x = \dfrac{ - 10 }{ - 2} [/tex]

[tex] \rm x = \red{ \bold{5}}[/tex]

[tex] \: [/tex]

[tex] \rm - 6(2x + 1) = 3(x + 5)[/tex]

[tex] \rm - 12x - 6 = 3x + 15[/tex]

[tex] \rm - 12x - 3x = 15 + 6[/tex]

[tex] \rm - 15x = 21[/tex]

[tex] \rm x = \dfrac{21}{ - 15} [/tex]

[tex] \rm x = \dfrac{7}{ - 5} [/tex]

[tex] \rm x = \red{ \bold{ - \dfrac{7}{5} }} \: atau \: \red{ \bold{ - 1 \dfrac{2}{5} }} \: atau \: \red{ \bold{ - 1,4}}[/tex]

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