5x—4.9x=0.31 3.4÷x=4.8÷24 8—3(x+0.2)=0.8
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5x—4.9x=0.313.4÷x=4.8÷248—3(x+0.2)=0.85x—4.9x=0.313.4÷x=4.8÷248—3(x+0.2)=0.85x—4.9x=0.313.4÷x=4.8÷24
5x—4.9x=0.31 3.4÷x=4.8÷24 8—3(x+0.2)=0.8
5x—4.9x=0.31 3.4÷x=4.8÷24 8—3(x+0.2)=0.8
5x—4.9x=0.31 3.4÷x=4.8÷24 8—3(x+0.2)=0.8
5x-4.9x=0.31
0.1x=0.31
x=0.31÷0.1
x=31
3.4÷x=4.8÷24
3.4=0.2x
x=3.4÷0.2
x=17
8-3(x+0.2)=0.8
8-3x-0.6=0.8
-3x=-6.6
x=-6.6÷(-3)
x=2.2
不懂可追问!
5x—4.9x=0.31 3.4÷x=4.8÷24 8—3(x+0.2)=0.8
x-x÷5=244 x-13=96-x+13 12x=10(x+20) 3.6x÷2=7.2×2x-x÷5=244x-13=96-x+1312x=10(x+20)3.6x÷2=7.2×2x÷3-x÷4=5这些题方程怎么解,
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
4x(5x-2)=3(5x-2)
5x-2=3x+4 x等于什么?
(5/9x-4)+(40%x+6)=x
x+(1/2x-4)=32-(2x+5)
x平方+5平分=4x乘x
解方程.2.5x=14 3.4x-48=26.8 42x+25x=134 x-7.9=2.6 x解方程.2.5x=143.4x-48=26.842x+25x=134x-7.9=2.6x÷3=1.22x-97=34.213(x+5)=169
36÷x=4,x是多少
列方程 X+3.5=91 3X=57 X—3=6 X÷8列方程X+3.5=91 3X=57X—3=6 X÷8=1.36X+3=9 4X—2=105X—39=56 18+5X=218X—4×14=0 7X÷3=8.19
2.1x—1.6x=4
﹣(x²-5-4x)-x(x²+x-1),其中x=-1.先化简再求值
x+(x+1)+(x+2)=48x+(x-1)+(x-2)=487×(43-x)+5x+15=10×(43-x)+(x+3)×7(x-3.6)÷4=(x+4.8)÷8(x+10)×4=(0.6x+10)×5
4x+5x=0.36
5-x/2x+4>=0
5x+4x=18
10x=5+x