5X-3Y=3,X,Y各等于多少

问题描述:

5X-3Y=3,X,Y各等于多少
求32的X次方除以8的Y次方等于多少

32^x÷8^y
=(2^5)^x÷(2^3)^y
=2^5x÷2^3y
=2^(5x-3y)
=2^3
=8