6.2x+2X=12.3 [2]5.1X-4X=45.1 [3]X-0.45=11 全部都要解出来

问题描述:

6.2x+2X=12.3 [2]5.1X-4X=45.1 [3]X-0.45=11 全部都要解出来

  6.2x+2X=12.3 5.1X-4X=45.1 X-0.45=11
  8.2x=12.31.1x=45.1 x=11+0.45
x=1.5 x=41x=11.45
请采纳,谢谢!