x-1.38=8%x
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x-1.38=8%x
x-1.38=8%x
x-1.38=8%x
您好,答案是x=1.5
(1-0.08)x=1.38
0.92x=1.38
x=1.5
x-1.38=8%x
9X*8X-7X*9X=?cccccccccccccccccccccccccccccccccccc
*-----------------------------------------------*| 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 ||
分解因式:x*x*x*x+2*x*x*x-9*x*x-2x+8
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
1/(1-x)+1/(1+x)+2/(1+x*x)+4/(1+x*x*x*x)+8/(1-x*x*x*x*x*x*x*x)怎么做
5.4x+x=12.8 x=?
(X?-7X?=8 求未知数X=?
4x-8=3x+24 x是多少
4X+16=6X-8,求X
½x+8=5x.x是多少?
5x-8=32 x=?
8x-8×3=2x
解方程3x(5-3x)-36=2x(7-2x)+5x(8-x)
x²+6=8x
x²-8x=-12
12-x=3x+8