(x+4)÷5=6.
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(x+4)÷5=6.
若A÷(x-5)+B÷(x+2)=(5x-4)÷(x×x-3x-10)求A,B的值.
1.(x^3-x^2-4x+1)/(x^2-3x+2)-(x^3-2x^2-9x+21)/(x^2-5x+6)+(x^2-3x+8)/(x^2-4x+3)2.{(x^2)/(x-y)}*{y/(x+y)}-{(x^4y)/(x^4-y^4)}÷{(x^2/x^2+y^2)^2}
x+(x+1)+(x+2)=48x+(x-1)+(x-2)=487×(43-x)+5x+15=10×(43-x)+(x+3)×7(x-3.6)÷4=(x+4.8)÷8(x+10)×4=(0.6x+10)×5
4x+1.2×5=24.4 x-0.7x=2.1 8x+5x=2.6 (4x+5)÷2=4x+1.2×5=24.4 x-0.7x=2.18x+5x=2.6 (4x+5)÷2=17.52x-16=24
x-x/5=2.4 (求未知数x) 12÷5%x=8 4x+x=12.5
﹣(x²-5-4x)-x(x²+x-1),其中x=-1.先化简再求值
先化简再求值:(x²+2x-8/x³+2x²+x)÷(x-2/x)其中x=-4/5
3-x/2x-4÷(x+2 - 5/x-2)(1/x+1 + 1/x-1)÷ x/x+11/x+1 - x+3/x²-1 · x²-2x+1/x²+4x+3(1/x - 1/2)÷(1- x²+4/4x )
先化简,再求值:(1)(x+1/x²-x-x/x²-2x+1)÷1/x,x=根号2+1 (2)(1+x-3/x+3)÷2x/x²-9 x=根号3+3 (3)4-x/x-2÷(x+2-12/x-2)x=根号3-4 (4)x-3/2x-4÷(5/x-2-x-2) x=根号3-2
解九宫格题目(X为未知数)9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1
哪个x的值是方程的解?x÷6=0.3 (x=20,x=1.8) 43+x=60 (x=19x=105)接着上面的 9x-5x=16 (x=64 x=4) 3.8x-x=5.6 (x=2 x=2.8)
先化简再求值:(x²+2x-8/x³+2x²+x)÷{(x-2/x)·(x+4/x+1)}其中x=-4/5其中x=-4/5
(x平方+7x+10)/(x平方+6x+5) × (x三次方+1)/(x平方+4x+4) ÷ (x平方-x+1)/x-2 其中,x=4.
3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/(x-2)-x/(x+2)÷2x/(x²-4)化简
解方程 5(x-7)=26.5 4(x+8.2)=40.8 (x-0.52)÷4=1.12 1.5解方程5(x-7)=26.54(x+8.2)=40.8(x-0.52)÷4=1.121.5(x-8)=604x+2x=5.4x-0.52x=12全部
x-x÷5=244 x-13=96-x+13 12x=10(x+20) 3.6x÷2=7.2×2x-x÷5=244x-13=96-x+1312x=10(x+20)3.6x÷2=7.2×2x÷3-x÷4=5这些题方程怎么解,
1).1/x²-3x+2 + 1/x²-5x+6 + 1/x²-4x+32).x-1/x²+3x+2 + 6/2+x-x² -(10-x)/4-x²3).(x+1-1/1-x)÷(x-x²/x-1)4).(x²-4/x²-x-6 +x+2/x-3)÷(x+1)/(x-3)5).x/x-y ·y²/x+y - x^4y/x^4-y^4