x+0.5x=6
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x+0.5x=6
6x(x-2)=(x-2)(x-3)
请问,这几道关于一元一次方程的题目,我做对了没有?(1) 3X+0.5X=10.53.5x=10.5X=3(2) 5X-2X=93x=9X=3(3) X+6x+5x=1812x=18X=1.5(4) 10x-4.5X=2.5乘以3.55.5x=8.75X=1.59(5) -6.5X=2.5乘以3.5-6.5x=8.75X=-1.34
*-----------------------------------------------*| 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(x*x-6x-9)-x(x*x-8x-15)+2x(3-x)
填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
(x+2)(x-1)+(x+3)(x+1)=x·x-1 求x (5x-4)(2x+5)(3x-6)(2x-4)=(2x-4)(2x+5)·0.5 求x
4(x-3)=2x 8x+0.5=4x+4.5 4x+20=6x-10 解方程
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+2×0.5x-6=30
6X-(360X-0.5X)=2×(360X-0.5X)
6X-(360X-0.5X)=2×(360X-0.5X)怎么算?
6x+15=87 8X-0.5x=15 x+0.6x=11.2
6x-2x+3x-3x-x=1.2×3
混合运算6x+2x²-3x+x²+1其中x=-5
150.5x -4x +0.5x =7
0.5x=4/5(6+x)x=?
x=0.5,6x+x^2怎么算