解方程(还要要验算) x+3.2=4.6 x -1.8=4 x-2=15 x1.6x=6.4 x÷7=0.3 x÷3=2
解方程(还要要验算) x+3.2=4.6 x -1.8=4 x-2=15 x1.6x=6.4 x÷7=0.3 x÷3=2
19.2x-2x=6 5.5x+4x=17.28 解方程.并验算.
方程验算:x+3x=56
2\x+2-(1)\x-2=0解方程并验算 (7\x^2+x)+(3\x^2-x)=(6\x^2-1)
解方程并验算(1)3x-0.5x=2.8 验算:(2)5.64x+3.2x=21 验算:(3)0.27×3-6x=51%
解方程(1)x+1分之6=x(X+1)分之x+5 x-4分之3-x+4-x分之1=1 含有验算
解方程怎么验算?如:x+0.3=1.8 3+x=5.4 x-1.5=4 x-6=7.6 5x=1.5 0.2x=6 x÷
解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7)
解方程:(x+3)/(x+2)-(x+5)/(x+4)=(x+7)/(x+6)-(x+9)/(x+8)
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)