解方程。
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| (1)x-35%x=7.8 65%x=7.8 x=12 | (2)x+160%x=39 260%x=39 x=15 | (3)58%x-23%x=2.1 35%x=2.1 x=0.6 |
| (4)80%x=72 x=90 | (5)28%x+37%x=22.75 65%x=22.75 x=35 | (6)x+40%x=8.4 140%x=8.4 x=6 |
(7) :x=![]() x= ![]() | (8)49:x=![]() x=14 | (9)x: =![]() x= ![]() |
| (10)9.6:x= 4 x=2.4 | (11)x:0.6=14.4 x=8.64 | (12)0.2:x=![]() x= ![]() |
:x=





