求12.5x-0.75x+3=7.3-1.5x的解
求12.5x-0.75x+3=7.3-1.5x的解
解:
12.5x-0.75x+1.5x=7.3-3 ……移项
(12.5-0.75+1.5)x=4.3 ……将x前系数相加减
13.25x=4.3 ……计算
x=4.3/13.25
x=86/265 ……化简计算结果
你要掌握解方程的方法呀~~
12.5x-0.75x+3=7.3-1.5x
11.75x+3=7.3-1.5x
11.75x+1.5x=7.3-3
13.25x=4.3
x=4.3÷13.25
x=86/265
x≈0.325
12.5x-0.75x+1.5x=7.3-3
13.25x=4.3
x=4.3/13.25
你是不是抄错题目了。怎么这么纠结的答案。
11.75x+3=7.3-1.5x
13.25x=4.3 x=0.325
先移项;12.5x-0.75x+1.5x=7.3-3
(12.5-0.75+1.5)x=7.3-3
计算; 13。25x=4.3
结果; x=86/265
12.5x-0.75x+3=7.3-1.5x
11.75x+3 =7.3-1.5x
11.75x+1.5x =7.3-3
13.25x =4.3
x =3.08
12.5x-0.75x+3=7.3-1.5x
12.5x-0.75x+1.5x=7.3-3
13.25x=4.3
x=0.324……
什么题目啊?有点问题吧,一般解方程都是能除尽的!
11·75X+3=7·3-1·5X
11·75X+1·5X=7·3-3
13·25X=4·3
X=0·325
解:(12.5-0.75+1.5)x=7.3-3
13.25x =4.3
x=86/265