1500x+2100*(50-x)=90000这个方程怎么解,求过程

2025-06-20 21:39:13
推荐回答(1个)
回答1:

解:解方程,此方程的解为x = 25
1500x + 2100 × (50 - x)= 90000
1500x + 105000 - 2100x = 90000
-600x = 90000 - 105000
-600x = -15000
x = (-15000)÷ (-600)
x = (-15000)× (-1/600)
∴x = 25
答:此方程的解为x = 25