解,得:
由5(x+2)=2x+3,解得
5X+10=2X+3
3x=-7
x=-7/3
把x带入方程k/5(5x-3)=(3k+1)/3,得
k/(5(5x-3))=(3k+1)/3
3k==(25x-15)(3k+1)
3k==(25*(-7/3)-15)(3k+1)
3k==(-175/3-15)(3k+1)
3k==-175k-175/3-45k-15
9k+175k+45k=-190
229k=-190
k=-190/229
解,得:
由5(x+2)=2x+3,解得
5X+10=2X+3
3x=-7
x=-7/3
把x带入方程k/5(5x-3)=(3k+1)/3,得
k/(5(5x-3))=(3k+1)/3
3k==(25x-15)(3k+1)
3k==(25*(-7/3)-15)(3k+1)
3k==(-175/3-15)(3k+1)
3k==-175k-175/3-45k-15
9k+175k+45k=-190
229k=-190
k=-190/229