5:16=八分之五:(2x-7)解比例?

2025-12-14 09:47:01
推荐回答(4个)
回答1:

5×(2x-7)=16×5/8
2x-7=10÷5
2x=9
x=4.5

回答2:

5/16=5/8:(2x-7) 2X-7=2 x=4.5

回答3:

5:16=5/8:(2x-7)
2x+7=16x5/8÷5
2x+7=2
2x=2-7
2x=-5
x=-2.5

回答4:

老师10÷5
怎么等于9