10(2.45减x)等于4.5
问题描述:
10(2.45减x)等于4.5
答
10(2.45-x)=4.5
2.45-x=0.45
x=2.45-0.45
x=2
10(2.45减x)等于4.5
10(2.45-x)=4.5
2.45-x=0.45
x=2.45-0.45
x=2