"3x+1=4y-x=y+2"怎么解
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"3x+1=4y-x=y+2"怎么解"3x+1=4y-x=y+2"怎么解"3x+1=4y-x=y+2"怎么解楼主,这道题不难:3x+1=y+2,①4y-x=y+2.②①即3x-y=1.③②即3y-x=
"3x+1=4y-x=y+2"怎么解
"3x+1=4y-x=y+2"怎么解
"3x+1=4y-x=y+2"怎么解
楼主,这道题不难:3x+1=y+2,① 4y-x=y+2.② ①即3x-y=1.③ ②即3y-x=2.④ ③+④,得2x+2y=3,x+y=1.5.⑤ ③-④,得4x-4y=-1,x-y=-0.25.⑥ ⑤+⑥,得x=5/8.y=7/8.希望能够帮助到您!
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