.........................
6x-9=0
6x=9
x=9/6
x=3/2
x=1.5
709.602+290.498=1.000.100
569.487.652+40.513.349=610.001.001
200.010.030-199.879.078=130.952
2.704.608.079-296.392.927=2.408.215.152
8640:8=1080
5250:5=1050
178:2=89
18*32=576
6293:31=203
2932-2782=150
121.350-115.325=6.025
6.025:5=1.205
5100:170=30
110.292:14=7.878
7878:101=78
78*231=18.018
90*3=270
25*25=625
30000000*40=1200000000
98-79=19
121-76=45
654-398=256
126+3395=3521
(24-x)*5-32=48
(24-x)*5=48+32
(24-x)*5=80
24-x=80:5
24-x=16
x=24-16
x=8
720:(y:7+80)=6
y:7+80=720:6
y:7+80=120
y:7=120-80
y:7=40
y=40*7
y=280
200-(48:t)*45=20
(48:t)*45=200-20
(48:t)*45=180
48:t=180:45
48:t=4
t=48:4
t=12
(y*40+60):3=140
y*40+60=140*3
y*40+60=420
y*40=420-60
y*40=360
y=360:40
y=9