5x-4.5x=2.7

5x-4.5x=2.7 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 用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+. x-三分之一x-四分之一x(x-三分之一x)=5 2.7x - 4.5=0.3x+0.3 76+5x=86.4+4.5x,x是多少 4X+5X=2.7 2.75-5x=2.7 求x 5X(X-2.7）=6.5 5x(x-2.7）=6.5 2.7x*5-2x=23 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? 0.6(5x-4.5x)=9 21分之10x÷3分之2=7分之3x-3分之1x-2分之1x=190x-53x=7408.5x-6.9x=43.3x-200=0.2x+1101.02+0.4x+2.6x=3.428.9x-67=4.5x+656x-58=3x+1410x-20=5x+806x+5=10x-3420-1.4x=9.8x-288.2x+5.4x=272 y=(3x^2-x√x+5√x-9)/√x 求导我算到4.5x^0.5-1+2x+4.5x^1.5 , 解方程：1.x/2x-3+5/3-2x=4 2.7/x+x+1/x-x=6/x-1 8x+5x=1.3 4.5x-3.2x=3.9 5.5x-x=9.9 11x-7x-26=34 列方程 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)