7.9×3+3X=36
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7.9×3+3X=367.9×3+3X=367.9×3+3X=367.9×3+3X=3623.7+3x=363x=12.3x=4.13X=36-7.9*3=12.3X=4.1x=4.1x=4.13X=
7.9×3+3X=36
7.9×3+3X=36
7.9×3+3X=36
7.9×3+3X=36
23.7+3x=36
3x=12.3
x=4.1
3X=36-7.9*3=12.3
X=4.1
x=4.1
x=4.1
3X=36-23.7
3X=12.3
X=4.1
7.9×3+3X=36
7.9+x=12
x=4.1
解方程3x(5-3x)-36=2x(7-2x)+5x(8-x)
7.9×3+3X=36
解方程.2.5x=14 3.4x-48=26.8 42x+25x=134 x-7.9=2.6 x解方程.2.5x=143.4x-48=26.842x+25x=134x-7.9=2.6x÷3=1.22x-97=34.213(x+5)=169
6x-2x+3x-3x-x=1.2×3
6.8+12÷x=10.8,14-0.5(x+3)=7.8,3.5x-3x-10=8,7.9-5x=7.8÷210x-20=6x,10+6x=8x,2(x+54)=8x,25-2x=5+2x
3x(x+2)=5(x+2)
X²+3X-130=0求解X?
2X+x²=3 x=?
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)(
x+3=5x-3
2x=(x+3)+3
x+3x=20
4%x+1%x=3
5分之3X+36=X (X为未知数)
12x+3x=18+27 11x+40=100-9 9x+30=90+6x 2.5x-x=6+1.5 2x+18=7x+3 36+2x=7x-14
x+ 1/x=3 求 :x²+ 1/x²=
解方程:(x+1)(x+2)(x+3)(x+4)-8=0.
6-2x+3x-3x-x=1.2×3