3x+0.6=4.8:R*o(f2H,}'w6c:c0f
算式:提示7p3G6b1D3F+n7R,F9f-r3C-n1X:@8O:R*o(f2H,}'w6c:c0f
x=9F-a2O:B*p.n.U:R*o(f2H,}'w6c:c0f