3(120-X)/1.8=120 3(120-X)/1.8=120
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3(120-X)/1.8=1203(120-X)/1.8=1203(120-X)/1.8=1203(120-X)/1.8=1203(120-X)/1.8=1203(120-X)/1.8=120x=48
3(120-X)/1.8=120 3(120-X)/1.8=120
3(120-X)/1.8=120
3(120-X)/1.8=120
3(120-X)/1.8=120 3(120-X)/1.8=120
x=48
【解析】
120-x=72
x=48
证明(x+1)(X+3)(x+5)(x+7)+15=(X+8x)+22(x+8x)+120
解方程 x+1/3x+(120-x-1/3x)=120
60%x+25=40 x+30%x=52 19-120%x=7 4分之3x-5%x=17.5 x-10%x=18 (1-25%)x=36 2x+30%x=9.2
计算(1)3x(x-1)=2(x-1);(2)x的2次方+2x-120=0;(3)x(x+3)=1
12—120%X=6 5分之3X—5%X=5.5 (1+25%)X=7.5 X—30%X=91 4%X+6%X=29.4 X+25%X=8.75
请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360
3x-(4800+x)=120
x+2/3x=60 x-3/5x=120 4x+18x=1x+2/3x=60 x-3/5x=120 4x+18x=132!
(x+1)(x+2)(x+3)(x+4)-120
因式分解(X+1)(X+2)(X+3)(X+4)-120
因式分解(x+1)(x+2)(x+3)(x+4)-120
数学(X+1)(X+2)(X+3)(X+4)-120
因式分解:(X-1)(X-2)(X-3)(X-4)-120(x-1)(x-2)(x-3)(x-4)-120
(x+1)(X+2)(x+3)(x+4)-120 因式分解(x+1)(X+2)(x+3)(x+4)-120因式分解
求证:(x+4)(x+3)(x+2)(x+1)与(x-1)(x-2)(x-3)(x-4)-120有相同的因式
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
解方程 x+4/11x=75 x-1/4x=120 3x+12x=180 8x-x=175