x+x+3+x:2=48
x+x+3+x:2-(48)=0
((2x+3)+x/2)-48=0
2x+3 (2x+3)*2
2x+3= -------- = ------------
1 2
(2x+3)*2+x 5x+6
---------------- = -----------
2 2
(5x+6)
--------- - 48 =0
2
48 48*2
48 = ---- = --------
1 2
(5x+6)-(48*2) 5x-90
------------------ = ---------
2 2
5x-90=5*(x-18)
5*(x-18)
----------- =0
2
5*(x-18)
------------ * 2 = 0*2
2
5*(x-18)=0
5=0
x-18=0
x=18
18+18+3+18:2=
=18+18+3+9
=36+12
=48
