x/6=(100-x)/9这方成怎么解

x/6=(100-x)/9这方成怎么解

x/6=(100-x)/9
左右同时乘以54
9x=6(100-x)
9x=600-6x
15x=600
x=40

等式两边同乘以54 得到9x=600-6x x=40

x/6=(100-x)/9
9x=6(100-x)
9x=600-6x
9x+6x=600
15x=600
x=40

去分母，得3x=2(100-x)
去括号，得3x=200-2x
移项，得3x+2x=200
化简，得5x=200
系数化为1，得x=40