решил уравнениеи z÷8=800×10 x×8=800×10 700÷x=7×100 пожалуйста ответьте

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

z÷8=800×10z÷8 = 8 000z = 8 000×8z = 64 000x×8=800×10x×8 = 8 000x = 8 000÷8x = 1 000700÷x=7×100700÷x = 700x = 700÷700x = 1