Question

$2U-7/5+U+11/2=4$

Answer 1

Saludos

2U - 7/5 + U + 11/2 = 4

2U + U = 4 + 7/5 - 11/2 

3U = 40/10 + 14/10 - 55/10

3U = -1/10

U = -1/10 / 3 

U = -1/30

S= { -1/30 }

Prueba

2(-1/30) - 7/5 -1/30 + 11/2 =

-2/30 - 7/5 -1/30 + 11/2 =

-3/30 -7/5 + 11/2 =

-1/10 - 14/10 + 11/2 = 

-15/10 + 11/2 =

-3/2 + 11/2 =

8/2 =

4