3(y-1)-(y+1)/3=1

题目

3(y-1)-(y+1)/3=1

答案

3(y-1)-(y+1)/3=1
方程两边同时乘以3得,
9(y-1)-(y+1)=3
去括号得,
9y-9-y-1=3
移项合并得,
8y=13
方程两边同时除以8得,
y=13/8