26.4x+18x=66.6 0.5×6+3x=4.8 2.5x-6=18.5 x-12.56=15.7 3.6+5.4x=273.6×5-0.5x=8.5

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26.4x+18x=66.6 0.5×6+3x=4.8 2.5x-6=18.5 x-12.56=15.7 3.6+5.4x=273.6×5-0.5x=8.5
26.4x+18x=66.6 0.5×6+3x=4.8 2.5x-6=18.5 x-12.56=15.7 3.6+5.4x=27
3.6×5-0.5x=8.5

26.4x+18x=66.6 0.5×6+3x=4.8 2.5x-6=18.5 x-12.56=15.7 3.6+5.4x=273.6×5-0.5x=8.5
26.4x+18x=66.6
44.4x=66.6
x=66.6÷44.4
x=1.5
0.5×6+3x=4.8
3+3x=4.8
3x=4.8-3
3x=1.8
x=1.8÷3
x=0.6
2.5x-6=18.5
2.5x=18.5+6
2.5x=24.5
x=24.5÷2.5
x=9.8
x-12.56=15.7
x=15.7+12.56
x=28.26
3.6+5.4x=27
5.4x=27-3.6
5.4x=23.4
x=23.4÷5.4
x=13/3
3.6×5-0.5x=8.5
18-0.5x=8.5
0.5x=18-8.5
0.5x=9.5
x=9.5÷0.5
x=19

26.4x+18x=66.6
44.4x=66.6
x=1.5
0.5×6+3x=4.8
3+3x=4.8
3x=4.8-3
3x=1.8
x=0.6
2.5x-6=18.5
2.5x=6+18.5
2.5x=24.5
x=9.8
x-12.56=15.7
x=12.56+15.7

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26.4x+18x=66.6
44.4x=66.6
x=1.5
0.5×6+3x=4.8
3+3x=4.8
3x=4.8-3
3x=1.8
x=0.6
2.5x-6=18.5
2.5x=6+18.5
2.5x=24.5
x=9.8
x-12.56=15.7
x=12.56+15.7
x=28.26
3.6+5.4x=27
5.4x=27-3.6
5.4x=23.4
x=13/3
3.6×5-0.5x=8.5
18-0.5x=8.5
0.5x=18-8.5
0.5x=9.5
x=19

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乖，自己算。这个都要求人的话数学你不用学了。

26.4x+18x=66.6
44.4x=66.6
x=1.5
0.5×6+3x=4.8
3x=1.8
x=0.6
2.5x-6=18.5
2.5x=24.5
x=9.8
x-12.56=15.7
x=28.26
3.6+5.4x=27
5.4x=23.4
x=4.33333
3.6×5-0.5x=8.5
9.5=0.5x
x=19

1，26.4x+18x=66.6
化简得4X=6
解得X=1.5
2，0.5×6+3x=4.8
化简得30X=18
解得X=0.6
3，2.5x-6=18.5
化简得5X=49
解得X=9.8
4，x-12.56=15.7
化简得X=12.56+15.7=28.26
5, 3.6+5.4x=27
化简...

全部展开

1，26.4x+18x=66.6
化简得4X=6
解得X=1.5
2，0.5×6+3x=4.8
化简得30X=18
解得X=0.6
3，2.5x-6=18.5
化简得5X=49
解得X=9.8
4，x-12.56=15.7
化简得X=12.56+15.7=28.26
5, 3.6+5.4x=27
化简得54X=234
解得X≈4.3
6，3.6×5-0.5x=8.5
化简得36-X=17
解得X=19

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26.4x+18x=66.6 0.5×6+3x=4.8 2.5x-6=18.5 x-12.56=15.7 3.6+5.4x=273.6×5-0.5x=8.5 26.4x 18x=66.6, x/(x^2+6x+18)=? 3x+6x×0.5=18 10x+(6-x)+18=10(6-x)+x 计算1/[x(x+3)]+1/[(x+3)(x+6)]+.+1/[(x+15)(x+18)]=? 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 1、0.3X-0.4X=0.5 2、5X-2.5X+3.5X=-18 3、X-2/5X=-3+6解这些一元一次方程, (x+30)*(x-18)=x*x 请问,这6道关于一元一次方程的题目我都做对了吗?X-5=6X-5+5=6+5X=110.3X=45X=1505X-2X=93X=9X=32X+3X+4X=189X=18X=2-3X+0.5X=102.5X=10X=47X-4.5X=2.5乘以3-52.5X=2.5X=16X-7=4X-56X-4X=7+52X=12X=6 请问,这几道关于一元一次方程的题目,我做对了没有?(1) 3X+0.5X=10.53.5x=10.5X=3(2) 5X-2X＝93x=9X=3(3) X+6x+5x=1812x=18X=1.5(4) 10x-4.5X=2.5乘以3.55.5x=8.75X=1.59(5) -6.5X=2.5乘以3.5-6.5x=8.75X=-1.34 matlab中a(x)=x^4+3x^3+9x-18 b(x)=x^5-4x^3-18x+7 c(x)=x^7+6x^5+9x^3-5x^2-2 d(x)=x^9-8x^7+6x^5-4x^4+d(x)=x^9-8x^7+6x^5-4x^4+6x^2+3 求e(x)=a(x)*b(x)*c(x)*d(x) 解方程 式子 6-2x+3x=3x-4x+3x+18 6-x+3x=2x-5x+1 2x-1=5x-36-2x+3x=3x-4x+3x+18 6-x+3x=2x-5x+12x-1=5x-3 (x+2)(x-1)+(x+3)(x+1)=x·x-1 求x (5x-4)(2x+5)(3x-6)(2x-4)=(2x-4)(2x+5)·0.5 求x 已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值紧急,,明天有用,, 1/x(x+3)+1/(x+3)(x+6)+1/(x+6)(x+9)=3/2x+18 1/x(x+3)+1/(x+3)(x+6)+1/(x+6)(x+9)=3/2x+18 1/x(x+3)+1/(x+3)(x+6)+1/(x+6)(x+9)=3/2x+18