Respuesta :

10 (2x + 3) = 15 x 9
20x + 30 = 135
20x = 135-30 = 105
x = 105 / 20 = 5.25
answer: x = 5.25

Answer:

[tex]x=\frac{21}{4}[/tex]

Explanation:

[tex]\frac{2x+3}{15}\cdot \:10=\frac{9}{10}\cdot \:10[/tex]

[tex]2x+3-3=\frac{27}{2}-3[/tex]

[tex]\frac{2x}{2}=\frac{\frac{21}{2}}{2}[/tex]

[tex]x=\frac{21}{4}[/tex]

[tex]=5,25[/tex]

(Its the same as the answer above; though I wrote in fraction equation)

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