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rezolvati in r ecuatia x+4=3(3x-2)​

Răspuns :

Răspuns:

x = 1,25 ∈ R ​

Explicație pas cu pas:

x + 4 = 3(3x - 2)

x + 4 = 9x - 6

x - 9x = - 6 - 4

- 8x = - 10

x = -10/-8

x = 1,25 ∈ R ​

[tex] \bf x+4=3 \cdot(3x-2)[/tex]

[tex]\bf x+4=9x-6[/tex]

[tex]\bf x+4 + 6=9x[/tex]

[tex]\bf 10=9x - x[/tex]

[tex]\bf 10=8x[/tex]

[tex]\bf x= \dfrac{10}{8} [/tex]

[tex]\bf x= \dfrac{ \not10}{ \not8} [/tex]

[tex] \boxed{\bf x= \dfrac{5}{4}}[/tex]