(2+4/7)÷x=36.

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(2+4/7)÷x=36.

(2+4/7)÷x=36.
(2+4/7)÷x=36.

(2+4/7)÷x=36.
2+4/7=36x
x=(18/7)/36
x=1/14

(18/7)/x=36
x=(18/7)/36
x=1/14

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 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 3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/(x-2)-x/(x+2)÷2x/(x²-4)化简 x^7÷x^2×x^3-2(x^2)^3×x^2+(x^2)^6÷(-x)^4+[(x^3÷x^2÷x)^0+1]^2 其中x≠0 *-----------------------------------------------*| 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. 分式计算 (x+2/x-2+4/x平方-4x+4)÷x/x-2*x-2/x [(x+2)/(x²+2x)-(x-1)/(x²-4x+4)]÷(x-4)/x 先化简(x平方-4x+4)/(x平方-2x)÷(x-4/x) (x-2/x-x+2/x)÷x^-4/4x (x-2分之x-x+2分之x)÷x平方-4分之4x 0.3+0.3x=0.39 x= 2x-1.5x=7.6x x= 0.36x÷0.3=1.2 x=6(x+1.2)=18.6 x= 7x+2x = 8.1 x= (x-5)÷3=1.7 x=5(x+1.1)=15.5 x= 9x+25=70 x= 7x-4x=2.1 x= 解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3) 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 1.先化简再求值:(x+3 - 7/x-3)÷( x²/2x-6 - 4x-8/x-3),其中x=2^-3 (2+4/7)÷x=36. 解方程 3x-48=0 0.5+7x=18 29.2-9x=解方程3x-48=0 0.5+7x=18 29.2-9x=45×(4-x)=12.5 (x+2.4)÷3=1.518÷3+4x=34 9x-14×2=12.58x+2x=31.4 8.5x-0.6x=23.7 (1) (x+960)×80%=x-832 (2) (2x-3)÷7=59-2x (3) 75%x+40%×(14-x)=...(1) (x+960)×80%=x-832(2) (2x-3)÷7=59-2x(3) 75%x+40%×(14-x)=50%×14(4) 3/5x=(x+10)×3/5(5) 1/2+1/6+1/12+1/20+1/30+1/42