X-60%=80
(1-0.6)X=80
0.4X=80
X=200
35%X+35=70
35%X=35
X=100
0.75X-15%X=12
0.75X-0.15X=12
(0.75-0.15)X=12
0.6X=12
X=20
2X%=1320
0.2X=1320
X=1320*5=32.5
X-60%=80
(1-0.6)X=80
0.4X=80
X=200
35%X+35=70
35%X=35
X=100
0.75X-15%X=12
0.75X-0.15X=12
(0.75-0.15)X=12
0.6X=12
X=20
2X%=1320
0.2X=1320
X=1320*5=32.5