Question

va rog frumos sa ma ajutati.
Aflati numarul x din proprietatile urmatoare:

Answer 1

1. x=12*6/8=9
2. 2x=12*4/5-->2x=9.6-->x=4.8
3. 2x+1=5*7/8-->2x+1=4,375-->2x=3,375-->x=1,6875.

Answer 2

x/12=6/8
x=12*6:8=72:8=9
x=9
2x/12=4/5 
2x*5=12*4
10x=48
x=48;10
x=4,8
(2x+1)/5=7/8
8(2x+1)=7*5
16x+8=35
16x=35-8
x=27;16
x=1,6875