Question

9/(2*2+x*3+x-1) *3 =36/100怎么解

Answer 1

9/(2*2+x*3+x-1) *3 =36/100

9/(4+3x+x-1) =12/100

9/(3+4x) =3/25

方程两边同时乘以(3+4x),得

9=9/25+12x/25

225=9+12x

12x=216

x=18

检验：左边=3/25

右边=3/25

所以x=18是原方程的根