Question

解方程2*（2*x）=1*x 快快快快快快快快啊~！ 请各位帮个忙吧~今天必须交的作业~！好的加分

规定新运算符号*的运算过程为a*b=1/3a-1/4b， 解方程2*（2*x）=1*x

Answer 1

2*x=2/3-1/4x
2*(2*x)=2/3-1/4(2/3-1/4x)
=2/3-1/6+1/16x
=1/2+1/16x

1*x=1/3-1/4x
所以1/2+1/16x=1/3-1/4x
5/16x=-1/6
x=-8/15

Answer 2

右边=1*x
=1/3-1/4x
2*x=1/6-1/4x
右边=2*(2*x)
=1/6-1/[4(1/6-1/4x)]
=1/6-3x/(2x-3)
左边=右边
得x=