8+2x=6+4x-16解：4x-2x=8+16-6 2x=18 x=18÷2 x=9
8+2x=6+4x-16解：8+2x=4x-104x-2x=8+102x=18x=18÷2x=9
8+2x=6+4x-168-6+16=4x-2x18=2xx=9
8+2x=4x-104x-2x=8+102x=18x=9
