5(3-2x)-12(5-2x)=-17 x-3(20-x)=3x-7(9-x) 2(x-2)-3(4x-1)=9(1-x)1-6(x-1)=75(2x+1)=3(x-2)+2(2x+1)2(m+x)=2+(m+1)已知x=-1求m
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![5(3-2x)-12(5-2x)=-17 x-3(20-x)=3x-7(9-x) 2(x-2)-3(4x-1)=9(1-x)1-6(x-1)=75(2x+1)=3(x-2)+2(2x+1)2(m+x)=2+(m+1)已知x=-1求m](/uploads/image/z/654864-24-4.jpg?t=5%283-2x%29-12%285-2x%29%3D-17+x-3%2820-x%29%3D3x-7%289-x%29+2%28x-2%29-3%284x-1%29%3D9%281-x%291-6%28x-1%29%3D75%282x%2B1%29%3D3%28x-2%29%2B2%282x%2B1%292%28m%2Bx%29%3D2%2B%28m%2B1%29%E5%B7%B2%E7%9F%A5x%3D-1%E6%B1%82m)
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