你好,很高兴为你解答求解方程7X-6=2X-47x-6-2x=2x-2x-45x=6-4x=2/5=0.4
7x-6=2x-47x-2x=6-45x=2x=2÷5x=0.4
7X-6=2X-4解:7X-2X=6-45X=2X=2÷5X=0.4
7x-6=2x-4解:7x-2x=6-45x=2x=0.4
5X=2X=2/5=0.4