13x-(4.5x+2.9)=0.5x+3.8×0.5
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13x-(4.5x+2.9)=0.5x+3.8×0.5
13x-(4.5x+2.9)=0.5x+3.8×0.5
13x-(4.5x+2.9)=0.5x+3.8×0.5
13x-(4.5x+2.9)=0.5x+3.8×0.5
13x-4.5x-2.9=0.5x+1.9
13x-4.5x-0.5x=1.9+2.9
8x=4.8
x=4.8÷8
x=0.6
8.5x-2.9=0.5x+1.9
8x=4.8
x=0.6
13x-(4.5x+2.9)=0.5x+3.8×0.5
13x-4.5x-2.9=0.5x+1.9
13x-4.5x-0.5x=1.9+2.9
8x=4.8
x=4.8÷8
x=0.6
13x-(4.5x+2.9)=0.5x+3.8×0.5
13x-4.5x-2.9=0.5x+1.9
8.5x-0.5x=1.9+2.9
8x=4.8
x=0.6
13x-(4.5x+2.9)=0.5x+3.8×0.5
(X+X)+(X-X)+(X*X)+(X/X)=100
x*x*x*x*x=80000?
7.8x-2.4x=1.08 4(x+0.5x)=28 3.6x+4.5x=56.7 7.8x-2.4x=1.084(x+0.5x)=283.6x+4.5x=56.7
9x+7x-x=4.5
0.5X+120+0.3X=X
4X+0.5X=13.5X
x-30-0.2x=0.5x
x-0.3x-0.5x=20
9x+0.5x+x=
4x+9x=13x
X+13%X-28%X=3.
x+13%x-28%x=3.4
13x-6.8x+x=46.
13x-15x+x=-3
x*x-10*x=13急
0.25x=0.5(13-x)
y=(3x^2-x√x+5√x-9)/√x 求导我算到4.5x^0.5-1+2x+4.5x^1.5 ,