Question

Resolver $\frac{4x+1}{3}= \frac{12x-3}{7}$

Answer 1

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

7(4x₊1)=3(12x-3)

28x₊7=36x-9

7₊9=36x-28x

16=8x

2=x

Rpta: x=2

Answer 2

Tenemos.
 
 4x + 1         12 - 3
----------- = ------------
     3                7


Multiplicamos en cruz.

7 (4x + 1) = 3 (12x - 3)

28x + 7 = 36x - 9

28x - 36x = - 9 - 7

- 8x = - 16

x = - 16/-8

x = 2

Solcuión.

x = 2