4X+3(24-X)=86 6X-48+4.5X=27 5X-6=4(X+2)+4 22×4+(x-22)×2=3x+2 求上面方程的解要有过程急!6X-48=4·5X+27咋解?
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![4X+3(24-X)=86 6X-48+4.5X=27 5X-6=4(X+2)+4 22×4+(x-22)×2=3x+2 求上面方程的解要有过程急!6X-48=4·5X+27咋解?](/uploads/image/z/266535-63-5.jpg?t=4X%2B3%2824-X%29%3D86+6X-48%2B4.5X%3D27+5X-6%3D4%28X%2B2%29%2B4+22%C3%974%2B%28x-22%29%C3%972%3D3x%2B2+%E6%B1%82%E4%B8%8A%E9%9D%A2%E6%96%B9%E7%A8%8B%E7%9A%84%E8%A7%A3%E8%A6%81%E6%9C%89%E8%BF%87%E7%A8%8B%E6%80%A5%216X-48%3D4%C2%B75X%2B27%E5%92%8B%E8%A7%A3%EF%BC%9F)
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4X+3(24-X)=86 6X-48+4.5X=27 5X-6=4(X+2)+4 22×4+(x-22)×2=3x+2 求上面方程的解要有过程急!6X-48=4·5X+27咋解?
4X+3(24-X)=86 6X-48+4.5X=27 5X-6=4(X+2)+4 22×4+(x-22)×2=3x+2 求上面方程的解要有过程急!
6X-48=4·5X+27咋解?
4X+3(24-X)=86 6X-48+4.5X=27 5X-6=4(X+2)+4 22×4+(x-22)×2=3x+2 求上面方程的解要有过程急!6X-48=4·5X+27咋解?
4X+72-3X=86
X=86-72
X=14
.
6X-4.5X=27+48
1.5X=75
X=50
meixueguo
X+72=86,X=14 10.5X=75,X=7(1/7) X=18 X=2+44-88,X=-42 1.5X=75,X=50
*-----------------------------------------------*| 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+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
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
2x+3x+4x+5x+x+6x+7x=100
matlab解决约束非线性规划问题myfun.mfunction f=myfun(x)f=x(1)*x(13)+x(2)*x(14)+x(3)*x(15)+x(25)+1.697*(x(4)*x(16)+...x(5)*x(17)+x(6)*x(18)+x(26))+0.575*(x(7)*x(19)+x(8)*x(20)...+x(9)*x(21)+x(27))+0.723*(x(10)*x(22)+x(11)*x(23)+x(12)*x(24));
matlab解决约束非线性规划问题myfun.mfunction f=myfun(x)f=x(1)*x(13)+x(2)*x(14)+x(3)*x(15)+x(25)+1.697*(x(4)*x(16)+...x(5)*x(17)+x(6)*x(18)+x(26))+0.575*(x(7)*x(19)+x(8)*x(20)...+x(9)*x(21)+x(27))+0.723*(x(10)*x(22)+x(11)*x(23)+x(12)*x(24));
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1/4X-1/6X=4,3X-X=48,X=48
1/4X-1/6X=4,3X-X=48,X=48
(x-1)(x-2)(x-3)(x-4)=48
(x+1)(x+2)(x+3)(x+4)=24
(x+1)(x+2)(x+3)(x+4)=24
=(x^2-5x)^2+10(x^2-5x)+24 =x^4-10x^3+25x^2+10x^2-50x+24 这是怎么转化的(X-1)(X-2)(X-3)(X-4) =(X-1)(X-4) (X-2)(X-3)=(x^2-5x+4)(x^2-5x+6)=(x^2-5x)^2+10(x^2-5x)+24=x^4-10x^3+25x^2+10x^2-50x+24=x^4-10x^3+35x^2-50x+24
=(x^2-5x+4)(x^2-5x+6) =(x^2-5x)^2+10(x^2-5x)+24 是怎么转化的(X-1)(X-2)(X-3)(X-4) =(X-1)(X-4) (X-2)(X-3)=(x^2-5x+4)(x^2-5x+6)=(x^2-5x)^2+10(x^2-5x)+24=x^4-10x^3+25x^2+10x^2-50x+24=x^4-10x^3+35x^2-50x+24不好意思我弄错了,是=(x^2-5
[3/x]-[4/x-1]=6/x-x²
[3/x]-[4/x-1]=6/x-x²
1+x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8 好多年没有用过过数学公式了 想不起来怎么算了 想知道 X值是多少
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