x:8=800•10. x•8=800•10. 700:x=7•100. помогите решить уравнения

х:8 = 800*10х:8 = 8000х = 8000*8х = 64000х*8 = 800*10х*8=8000х = 8000:8х = 1000700:х = 7*100700:х = 700х = 700:700х=1