8.4/0.5:x/2

8.4/0.5:x/2 250x - 2(x+50)(x+0.5)求x 26.2-9X=8.24（X+2)=11.64X+0.5乘3=6.75X-3.3=7.31.7X-0.7X=20X-4.5+5.5=158X+5乘7=914.8X+3.4乘6.7=34.785.4X+0.6X=6.63.5（X乘7）=25.913.056除X+3.20.35乘X=8.898（X-3）-5X=275X+20==10024-16X=2.77.5乘6-5X=0.825X-16X=2.73.5乘C(X+50)=238X-12.6=8.4 (x-2)+(x+2）+0.5x+2x等于多少个x?(x-2)+(x+2）+0.5x+2x等于多少x?要清楚! 先化简再求值先化简再求值：（x-x/x+1）(x+1/x^2+4x+4)(x^2-4/x^2-2x),其中x=-0.5 (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 （16）3（x-2.1）=8.4（17）5.06x+0.94x=1.8(18)(2x+3)/0.5=10(19)5x+24*1.5=66(20)7.2x-3.8x-7.8=12.6 2.4x(x+0.5)=8.4 6X-（360X-0.5X）=2×（360X-0.5X） 6X-（360X-0.5X）=2×（360X-0.5X）怎么算? 12x-2/21x=快点9点之前还有7x-x+2/3x-3(4x-0.5)-2x+(3x-1)-(x+5) (X-4)(x-2)-2(X-1)(X+3)其中X=-0.5 2(3-x)=9 求x 4(x+0.5)+x=17求x 0.5x(x+2)=1-x(3-.05x) X=? 5X-6.6=8.4+2X 3.14*（0.5x)(0.5x)*2x=50 4.75x-0.5x^2-0.5=0,解X 4-x=2(-0.5x²+2.5x-2)