Question

Aflati nr x din proportia 3x+2/5x+4=7/12

Answer 1

(3x+2)/(5x+4) = 7/12 
12(3x+2) = 7(5x+ 4)
36x + 24 = 35x + 28 
36x - 35x = 28 - 24 
x = 4 

Answer 2

$\frac{3x + 2}{5x + 4} = \frac{7}{12}$
12(3x+2)=7(5x+4)
36x+24=35x+28
36x-35x=28-24
x=4