3/14*x=4/21 x=8/9
(1/2-2/7)X=4/21
1个回答
相关问题
-
5/21x2/7+219/21x5/7+(1-2/7)
-
解方程:4(x^2-7x+10)-(2x+3)(2x-1)=-21
-
2/21*(x+4.8-1)=1/7*(x-1)怎么解?
-
1.已知4x^2+7x+2=4,求-12x^2-21x的值
-
解方程:5x-2=3.6;7(x-1.2)=2.1;7.5×8-4x=20;9.6x-2.4x=21.6;4x-7×1.
-
2(x+15)=x-10 4(x+7)=2(x-1) -7( x+1)=21 6(x-0.5)-x=12 ..
-
计算:1.( x^2-4x-21 )除以(x-7) 2.[(m+n)^2+(m^2+n^2)]
-
(2x-10)/21+(7x-4)/20=(2-x)/15+(8x+9)/4
-
1*3*5+2*6*10+7*21*35分之1*2*3+2*4*6+7*14*21 =[1*2*3*(1+2*2*2+7
-
2(3x+1)-3(6x+2)=-(21x+7)=?