X+(X+40)+(2X-20)=320
3个回答
X+X+40+2X-20=320
4x=320-20
4x=300
x=75
相关问题
20%+(1-20%)(320-x)=320*40%
20%+(1-20%)(320-x)=320×40%
20/(x-20)=(2x-40)/(x+40)
方程20x+320=50x+600怎么算
方程20x+320=50x+600怎么算
X-(7分之5乘X-20)=320,
(40-X)(20+2X)=1200
(40-x)(20+2x)=1200
(40-x)(20+2x)=1200
(20+2x)(40-x)=1200