0.8x+3.2=7.212.5-3x=6.556.4÷x+14.8=24.21.2(x-0.64)=0.54x+12.5=3.5x7.3×2.1-0.9x=7.86递等式计算(能简则简)6.4×0.29+6.4×8.71+6.4===2.98×1.25×(4-0.8)×0.25===9.9×101-9.9===[0.68÷(3.2-3.03)+1.4]÷(6-0.6)===全部答出给一百!明
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/17 19:44:13
0.8x+3.2=7.2
12.5-3x=6.5
56.4÷x+14.8=24.2
1.2(x-0.64)=0.54
x+12.5=3.5x
7.3×2.1-0.9x=7.86
递等式计算(能简则简)
6.4×0.29+6.4×8.71+6.4
=
=
=
2.98×1.25×(4-0.8)×0.25
=
=
=
9.9×101-9.9
=
=
=
[0.68÷(3.2-3.03)+1.4]÷(6-0.6)
=
=
=
全部答出给一百!
明天答就不给分了!
1 0.8x=4 x=5
2 3x=6 x=2
3 56.4÷x=9.4 x=6
4 1.2x=0.54+0.768=1.308 x=1.09
5 2.5x=12.5 x=5
6 0.9x=7.47 x=8.3
7 6.4×0.29+6.4×8.71+6.4
=6.4×(0.29+8.71+1)
=6.4×10
=64
8 2.98×1.25×(4-0.8)×0.25
=2.98×1.25×(4×0.25)-2.98×1.25×(0.8×0.25)
=2.98×1.25-2.98×0.25
=2.98
9 9.9×101-9.9
=9.9×(101-1)
=9.9×100
=990
10 [0.68÷(3.2-3.03)+1.4]÷(6-0.6)
=(0.68÷0.17+1.4)÷5.4
=(4+1.4)÷5.4
=1
用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+.
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
8x-5.5x=7.57.2x÷3.6=2 3x+6x-8x=0.7 12x-2x-5x=4.512x-x=0 5x+x=1.8 3.2x+1.8x=64.8x-0.8x=6 6.3-0.3x=9.6 8.6x-8.5x=0.720x-2x=36 9x+6x=4.5 18x-12x=5.42x-1.6x=3.6 18x+3x=7×6 1.2x-0.5x=0.71.3x+2.7x=1 4x-3.2x=6.4 0.8x+3.2x+3x=562.8x-2x=7.2
2.4x-1.6=3.2、7x-4x=2.4、9.7x-2.7x=35、5x+3x=264、8x-6x=0.15、0.8x+1.6=5.6(解方程的过程写清楚)
(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
x-2x+3x-4x+5x.+99x-100x=25求解
2x+3x+4x+5x+x+6x+7x=100
x(x-2)-2x(x+1)-3x(x-5) 其中x=负½
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
已知3x*x-x=1,求6x*x*x+7x*x-5x+2000
3x+5x=?x等于
3x+5x-6x=?
3x+5x=8x.
x^5-2x^3+x=?
8x(x-5)=3x
写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4