2.5×8-0.5x=19.6

2.5X-0.5X=18.5 x/3.14=8 2.5×8-0.5x=19.6 X+0.5X=3 X-0.8X=8 x+17=3(x+13),2x-11.2=0.6x,2.5x-2.17=21.9-5.8x,8（x-1.5）=x+0.6,2（0.5-x）+6=3x-2.53,用方程解 1.5x-0.5+1=-2x-12.0.3x-1.5=x+0.63.-4x-1=8-2.5x 2.5x-0.5×8=6,x=?解方程 3道简单的分式方程,1.3/(1-x^) = 2/(1+2x+x) - 5/1-2x+x^2.5x/(x^+x-6) + (2x-5)/(x^-x-12) = (7x-10)/(x^-6x+8)3.(x+1)/(x+2) + (x+6)/(x+7) = (x+2)/(x+3) + (x+5)/(x+6) 4a+3a-2a=?2b-b+0.5b=?10x-(7x+x)=?6x-1.5x=?8x+4x-8x=?7.5x-x+2.5=?5x-(3x-2.4x)=? 37+x=56 24x+28x=310 2.5x-0.5乘8=6怎么解方程 解方程（按顺序解答,3.8+X=12.8 6.4+X=15.6 X-4.8=4.8 1.5-X=0.84 2X+0.82=0.82 3+0.5=7 2X+0.4X=48(并检验)8x—x=14.735x+13x=9.65（x+3）=35x+3.7x+2=16.114x+3x—1.2x=15818—2.5x=13(并检验)1.5x—6=3（并检验）9.5x—5x=277x—0.6x=16 6x+15=87 8X-0.5x=15 x+0.6x=11.2 15=2.5X一0.5X X=? 4-x=2(-0.5x²+2.5x-2) 7x+2x=0.81 4(x-6)=36 2x+0.2xX2=36 3.4x-6=4.2 7.8x+5=44 7.5x+2.5=20 25.8-2x=12-7 4x+2.8=5.040.9x-4X1.3=1.1 1.3x7=25.1-8x 4.8+0.5x=6.3 (25+2x)X4=340大写的X是乘 小写的是x 求x是几 0.25x/x-2.5*0.6=0.5 2.5x一x=8,求x 0.5(X+8)=0.6x求x 8(x-0.5)=6(x+0.5)