5x-2(x-1)=14.
问题描述:
5x-2(x-1)=14.
答
5x-2(x-1)=14,
去括号得:5x-2x+2=14,
∴3x=12,
∴x=4.
5x-2(x-1)=14.
5x-2(x-1)=14,
去括号得:5x-2x+2=14,
∴3x=12,
∴x=4.