3.6Xx0.3=38.4(解方程)-搜答案-智慧作业帮

解比例3.6:X=0.48:

0.48x=3.6乘以0.12x=0.9

7.2-1.5x=3.6什么解

7.2-3.6=1.5x1.5x=3.6x=3.6除1.5x=2.4

(1.)2X*0.9+[(2200-X)*1.15]*0.9=23312X*0.9+[(2200-X)*1.15*0.9]=23311.8X+[(2200-X)*1.035]=23311.8X+[22

解方程50%X-3.6=5.4

50%X-3.6=5.40.5X=5.4+3.60.5X=9X=9÷0.5X=18

3.6÷x=2.4x=3.6÷2.4x=1.5

7.8×3x=3.623.4x=3.6x=3.6/23.4x=2/13（4.5-x）×0.375=0.754.5-x=0.75/0.3754.5-x=2x=4.5-2x=2.5

7.8×3x=3.63x=3.6/7.8x=3.6/（7.8X3）x=1.2/7.8x=2/13

0.6(8-4x)+3=3.64.8-2.4x=3.6-34.8-2.4x=0.62.4x=4.8-0.62.4x=4.2x=1.75

圆x²+y²=r²请推导切线公式两边对x求导：2x+2yy'=0--->y'=-x0/y0--->切线:y-y0=y'(x-x0)=-x0/y0*(x-x0)--->-x

3.6[x-15]+3.6x=486两边同时除以3.6x-15+x=1352x=150x=75

一3(X-3.6)-7(6-2X)=1.6(3X-10.8)-(42-14x)=1.63x-10.8-42+14x=1.617x-52.8=1.617x=55.4x=3.2二1.5-X=0.5X×41

4.8X-(4X-3)=484.8X-4X+3=480.8X=48-30.8X=45x=56.2536×（2X-3.6）=722x-3.6=22x=2+3.62x=5.6x=2.8

1.6x+2xX0.7=181.6x+1.4x=183x=18x=6

X=2化简2.4X-0.6X=3.61.8X=3.6X=2再问：过程再答：看吧五分之三=0.6再问：3分之）(减2=5分之6再答：原式：X/3-2=6/5化简：5X-30=6X=36/5（五分之三十六

9.6-x=3.6+xx+x=9.6-3.62x=6x=3x+6-2x=7.86-x=7.8x=6-7.8x=-1.8

假设法假设不对后来计算后有矛盾所以假设不成立证毕

3(x+3.6=18.6怎样解

是3(x+3.6）=18.6吗?分解开3x+10.8=18.63x=18.6-10.83x=7.8x=7.8/3=2.6

（x+3.6）=18.6/3x+3.6=6.2x=6.2-3.6x=2.6

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