Question

Media ARITMETICA a numerelor x , 1 si 3x este 11 . Calculati x . 

Answer 1

Ma=$\frac{x+1+3x}{3} =11$

$4x+1=11*3$

4x+1=33

4x=33-1

4x=32

x=32:4

x=8

Answer 2

x+1+3x totul supra 3= 11
Atunci, x+1+3x=11×3
4x+1=33
4x=32
x=8