5X-(18-X)×4=54
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![5X-(18-X)×4=54](/uploads/image/z/9318759-15-9.jpg?t=5X-%EF%BC%8818-X%EF%BC%89%C3%974%3D54)
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5X-(18-X)×4=54
5X-(18-X)×4=54
5X-(18-X)×4=54
5x-72+4x=54
9x=54+72=126
x=14
5x-72+4x=54
9x=54+72=126
x=14
5x-72+4x=54
9x=54+72
9x=126
x=14
14
5X-(18-X)×4=54
4.2-0.6x=3.6x 5x+2x=33.6 7x-4x=0.75 2x+7x+2.1=12 56x-32x-119=361 x+5=2x 3x+9=6x 4x-28=2x 2x+18=7x 5x=25*4-15x 7x-x+2*3=29.4 (28.8+5.5x+3.2)除2=71
3/x-1=4/x 6/x+1=x+5/x(x+1)
5X-(18-X)×4=54
5x+18=43 18—3x=15 x—20%X=55x+18=43 18—3x=15 x—20%X=54分之3X+6分之1x=22X乘(1—75%)=3.225%+0.5%x=151.6+2.4x=4
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
请问,这十道关于一元一次方程的题目我做对了吗?(1)2X+3X+4X=189X=18X=2(2)13X-15X+X=-3-1X=-3X=3(3)2.5X+10X-6X=15-21.56.5X=6.5X=1(4)4X+3(2X-3))=12-(X+4)4X+6X-9=12X-4810X-12X=-48+9-2X=-57X=28.5(5) 7X+2(3X-3)=207X+6X-6=2013X=20+6
(x-1)(x-2)=0 (2x-1)²=9 x²-7x+6=0 x(x-1)=x 2x²-5x-12=0 2(x-1=(x-1)(x-2)=0 (2x-1)²=9 x²-7x+6=0 x(x-1)=x 2x²-5x-12=0 2(x-1=(x-1)(x-2) 2x²+3x-18=0 3x²+2x-5=0 x²-4x-7=0.解一元二
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X-1/5*X-(X-1/5*X)*1/4=18
x=4x=254 5x-x=180 3x+x=16 4x-2x=28 15x-11x=12.8 (12+12*1.5)x=360 3.5(85=X)=560 (x+2x)*2=54 1.2x*1.5-1.5x=18*2怎么算
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x+5/x+1-3x-3/x+5=8x+28/x^2+4X-5-2(x+5)/(x+1)-(3x-3)/(x+5)=(8x+28)/(x^2+4X-5)-2
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