Question

解方程24x-8x=28.8 4.5x+1.6x=42.7 （7-1.4）x=2.8 9x-5.2×6=4.8 （2.5

Answer 1

（1）24x-8x=28.8 16x=28.8 16x÷16=28.8÷16 x=1.8；（2）4.5x+1.6x=42.7 6.1x=42.7 6.1x÷6.1=42.7÷6.1x=7；（3）（7-1.4）x=2.8 5.6x=2.8 5.6x÷5.6=2.8÷5.6 x=0.5；（4）9x-5.2×6=4.8 9x-31.2=4.89x-31.2...