(4x-1.5)/0.5-(0.5x-0.08)/0.02大于等于（4.5-3x)/0.3

(1)3.5x+x-14=18.4 (2)2.7*2-1.5x=0 (3)13x-6.8x+x=46.8 (4)17.5-0.5x=12.7 (5)5x-1.4x=54 4X+0.5X=13.5X 1、lim(x->无穷大) e^x arctanx2、lim(x->0)sinx√1+sin(1/x)3、lim(x->无穷大)【（√x^2+x+1）-【(√x^2-x+1)】4、lim(x->无穷大)((x+{x+(x)^0.5]^0.5}^0.5)/(2x+1)^0.55、lim(x->0)(sin3x+x^2sin1/x)/((1+cosx)x)6、lim(n->无穷大)(2^n)(si x^2-4（0.5-0.25x)(1.5-0.75X)-24(0.5-0.25X)^2 忘了，最后=0 求x:|x|-|x-4|=0.5x-1 x+x+0.5=4 (3x-1)/0.5=(4-x)/0.3+(3x+5)/1.5 x得多少? 8x-5.5x=7.57.2x÷3.6=2 3x＋6x-8x=0.7 12x-2x-5x=4.512x-x=0 5x＋x=1.8 3.2x＋1.8x=64.8x-0.8x=6 6.3-0.3x=9.6 8.6x-8.5x=0.720x-2x=36 9x＋6x=4.5 18x-12x=5.42x-1.6x=3.6 18x＋3x=7×6 1.2x-0.5x=0.71.3x＋2.7x=1 4x-3.2x=6.4 0.8x＋3.2x＋3x=562.8x-2x=7.2 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 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 (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 解方程 4x-5×6=12 8x-3x=15.630×（x÷4）=60 7.2×0.5-3x=1.2 1.5x+x=12.5 5x+21×3=2x 10x+7=12x-52.3x+17=3.5x3.1-3x=3/2x-3/44.3x-(4x-5)=6+(2-5x)5.-(1.5x+1)+2x=2(1.5x-1)6.5x+2(1-3x)=3(2-0.5x) 4x-1.5 5x-0.8 1.2-x --- - --- ＝ ---- 0.5 0.2 0.4x-1.5 5x-0.8 1.2-x--- - --- ＝ ----0.5 0.2 0.1 12x-2/21x=快点9点之前还有7x-x+2/3x-3(4x-0.5)-2x+(3x-1)-(x+5) 2(3-x)=9 求x 4(x+0.5)+x=17求x (X-4)(x-2)-2(X-1)(X+3)其中X=-0.5 1.5x-0.5+1=-2x-12.0.3x-1.5=x+0.63.-4x-1=8-2.5x