1、4.7x+2=16.14.7x=16.1-24.7x=14.1x=3验算：将x=3代入到原式4.7×3+2=16.114.1+2=16.116.1=16.12、0.52×5-4x=0.62.6-4x=0.64x=2x=0.5验算：将x=0.5代入到原式0.52×5-4×0.5=0.62.6-2=0.60.6=0.6...