4x + (120/3x - 40/60) x = 120怎么解?RT

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 x+2/3x=60 x-3/5x=120 4x+18x=1x+2/3x=60 x-3/5x=120 4x+18x=132! x+3分之2 x=60 x-5分之3x=120 4x+18x=132x+3分之2 x=60 x-5分之3x=120 4x+18x=132 x+2/3x=60 x-2/5x=120 4x+18x=132 *-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || (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 x-2=(104-x)+2 6x-59=10x-75 (x+10)+(x-15)=280-x4（x-62)=x-38 60x-40=(60+20)*(x-5) 32x+32*0.5-25x+64x=24x+496-49x x+15=3*(109-x ) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7) 13x-4(2x+5)=17(x-2)-4(2x-1) (13x+8)/3=5x-1x-60=2[(3561-x)+100]+1 (x+9)+12=2[(x-9)-1 六题解方程：x+75%x=140 x-40%x=96 x-76%x=36 4x+50%x=90 60%x-30=120 x+50%x=45 4x + (120/3x - 40/60) x = 120怎么解?RT 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 （x^2-2x)(x^2-2x+4)+3(x+1)(x+2)(x+3)(x+4)-120 (4/x-5)+(x-3)/(12-x)=(x-45)/(x^2-17x+60) 这些解方程：x-6=15%x12 x-10%x=18 40%x+1/5x=15 25%x-5=60%x 5 3x+20%x=160 x+25%=1/4这些解方程：x-6=15%x12 x-10%x=18 40%x+1/5x=15 25%x-5=60%x 5 3x+20%x=160 x+25%=1/4 帮忙啊 这些解方程：x-6=15%x12 x-10%x=18 40%x+1/5x=15 25%x-5=60%x 5 3x+20%x=160 x+25%=1/4 这些解方程：x-6=15%x12 x-10%x=18 40%x+1/5x=15 25%x-5=60%x 5 3x+20%x=160 x+25%=1/4