Question

3,1(2 - x) + 6,65 = 7,3 - 4,3(x - 3,7)

Answer 1

$3,1(2-x)+6,65=7,3-4,3(x-3,7)\\6,2-3,1x+6,65=7,3-4,3x+15,91\\1,2x=10,36\\x= \frac{1036}{120}\\x= 8 \frac{76}{120}\\x=8\frac{19}{30}$

Answer 2

6,2 - 3,1X + 6,65 = 7,3 - 4,3X + 15,91
12,85 - 3,1X = 23,21 - 4,3X
1,2X = 10,36
X = 8,6(3)