Question

Aflati x din proportiile:
4x-5/7 = x+5/3

Answer 1

$4x- \frac{5}{7} =x+ \frac{5}{3} \\ 84x-15=21x+35 \\ 63x=50 \\ x=50/63$

Answer 2

$4x- \frac{5}{7} = x+ \frac{5}{3} <=> 3x= \frac{5}{3} + \frac{5}{7} <=> 3x= \frac{35}{21} + \frac{15}{21} <=>3x= \frac{50}{21}$
=>x=$\frac{50}{21} *3 <=> x = \frac{50}{7}$.