计算下列各题,能简算的要简算。5400﹣2940÷28×27 (20.2×0.4+7.88)÷4.2()÷+ 10÷[﹣(÷+)]
5.6×0.375+×5.4-0.375×0.9
5.6x+4x=17.28
x+=
[一(一)]÷
(+一)×48