打错字了,0.2y-5y+0.5=1-0.2y-0.4
1个回答
.同样的道理呀
0.2y-5y+0.2y=1-0.4-0.5
(0.2-5+0.2)y=0.1
-4.6y=0.1
y=-0.0217
相关问题
4y-1.5/0.5-5y-0.8/0.2=1.2-y/0.1
·0.4y+0.9/0.5-y-5/2=0.3+0.2y/0.3求y
0.4y+09/0.5-y-5/2=0.3+0.2y/0.3(解方程)
解方程组:(1)0.3x-0.5y=-0.9且2.1x+y=7.2 (2)0.2x+0.5y=0且5(x+4-3(y+1
4(y-2-(5[1-2y]-4[5y-1[)=0
4(y-2)- {5(1-2y)- 4(5y-1)}=0.
0.4y+0.9/0.5-0.3+0.2y/0.3=1
0.4y+0.9/0.5 - 0.3-0.2y/0.3=1
(-x^2+3xy-0.5y^2)-(0.5x^2+4xy-1.5y^2)=-0.5x^2+( )+y^2
(0.3y-0.2)/0.5-1/3=1-(0.6y-0.4)/1.