X+120=3/5[6X-(X+120)]解方程,我要过程,是576
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X+120=3/5[6X-(X+120)]解方程,我要过程,是576
X+120=3/5[6X-(X+120)]解方程,我要过程,是576
X+120=3/5[6X-(X+120)]解方程,我要过程,是576
X+120=3/5[6X-(X+120)]
X+120=3/5(6X-X-120)
X+120=3X-72
2X=192
X=96
X+120=3/5[6X-(X+120)]
5*(X+120)=3*[5X-120]
5X+600=15X-360
X=96
x=3/5(5x-120)-120
x=3x-72-120
-2x=-192
x=96
证明(x+1)(X+3)(x+5)(x+7)+15=(X+8x)+22(x+8x)+120
100-2x+5x=120(x+3)×5-2x=30100-(4x+1)-(4x+1)=204x+8=6x-10
100-2x+5x=120(x+3)×5-2x=30100-(4x+1)-(4x+1)=204x+8=6x-10
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