x-1.8=4.6 4+0.2x=30 8x-2x=25.2
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x-1.8=4.64+0.2x=308x-2x=25.2x-1.8=4.64+0.2x=308x-2x=25.2x-1.8=4.64+0.2x=308x-2x=25.2
x-1.8=4.6 4+0.2x=30 8x-2x=25.2
x-1.8=4.6 4+0.2x=30 8x-2x=25.2
x-1.8=4.6 4+0.2x=30 8x-2x=25.2
x-1.8=4.6 4+0.2x=30 8x-2x=25.2
9x-x=4.6 x=几
2x-1.8=x+2.4 x是多少?
X-25%X=1300-X+30
x-20%x=4 4x-75%=0.25 x÷四分之五=40% 20%x+30%x=120
7.8-3.2x=1.8x.
150.5x -4x +0.5x =7
X-30%X=56
多项式x^4+2x^3-4x^2-2x+3与x^3+4x^2+x-6的最大公因式是什么x^4+2x^3-4x^2-2x+3=(x^4+3x^3)-x(x^2+4x+3)+(x+3)=x^3(x+3)-x(x+1)(x+3)+(x+3)=(x+3)[x^3-x(x+1)+1]=(x+3)[x^3+1-x(x+1)]=(x+3)[(x+1)(
4X加30%X=12.9
10%X=0.4 X+25%X=10 9%X-4.5×0.2=1.8解方程
告诉我解下列方程的方法:1.8÷0.3-0.2x=2 6x+4x=1.8×4 0.9×7-1.5x=1.8
x+60%x=80 80%-30x=305 35%x=210 x+50%x=60 x-40%x=0x+60%x=8080%-30x=30535%x=210x+50%x=60x-40%x=0.36(1-80%)x=21么么哒!
1.5X-X=0.2
30x+90=x
x+4x=20
4×x+x=15
4x=x+18