Question

Aflați n€N daca :
4n-3|12=7|4

Answer 1

(4n - 3)/12 = 7/4 
4(4n - 3) = 12 x 7 
16n - 12 = 84 
16n = 84 + 12 
16n = 96 
n = 96 : 16 
n = 6 

Answer 2

$\frac{4n-3}{12}=\frac{7}{4}$

$=>4n-3=\frac{7*12}{4}$

$4n-3=7*3$

$4n-3=21$

$4n=21+3$

$4n=24$

$n=24:4$

$n=6$