120×400加括号120-x括号完×100=80×500乘以括号45%+1括y怎么解

120×400加括号120-x括号完×100=80×500乘以括号45%+1括y怎么解
2025-02-28 03:41:32
推荐回答(2个)
回答1:

120×400+(120-x)×100=80×500×(1+45%)
48000+12000-100x=40000x1.45
60000-58000=100x
100x=2000
x=20

回答2:

去问老师^ω^