Question

4x 1 sobre 3 = 12x-3 sobre 7 .

Answer 1

Tenemos.

$\frac{4x+1}{3}=\frac{12x-3}{7}\\ \\ (4x + 1)* 7 = 3(12x - 3)\\ \\ 28x+7=36x-9\\ \\ 28+7-7=36x-9-7\\ \\ 28x = 36x-16\\ \\ 28x - 36x = 36x - 16 - 36x\\ \\ -8x = -16\\ \\ 8x = 16\\ \\ x = \frac{16}{8}\\ \\ \boxed{\mathrm{\textbf{x = 2}}}$

Conclusión:

$\boxed{\textbf{x = 2}}$

¡SUERTE!

Answer 2

Respuesta:

Solucion:

4x + 1/3 = 12x - 3/7

1/3 + 3/7 = 12x - 4x

1(7) + 3(3)/3(7) = 8x

7 + 9/21 = 8x

8x = 16/21

x = 16/21/8/1

x = 16(1)/21(8)

x = 16/168

x = 2/21

Verificamos

4x + 1/3 = 12x - 3/7

4(2/21) + 1/3 = 12(2/21) - 3/7

8/21 + 1/3 = 24/21 - 3/7

8/21 + 7/21 = 24/21 - 9/21

(8 + 7)/21 = (24 - 9)/21

15/21 = 15/21

5/7 = 5/7

Espero ayude

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