请问,这10道关于一元一次方程的题目我都做对了吗?(1)8X-3(3X+2)=68x-9x+6=6-1x=6+6-1x=12X=-12(2)8X-3(X+2)=48x-3x+6=45x=4-65x=-2X=-0.4(3)4X+3(2X-3)=12-(X+4)4x+6x-9=12x+184x+6x-12x=18+9-2x=27X=-13.5(4)X-5=-6x-5+5=6x=6(5)
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![请问,这10道关于一元一次方程的题目我都做对了吗?(1)8X-3(3X+2)=68x-9x+6=6-1x=6+6-1x=12X=-12(2)8X-3(X+2)=48x-3x+6=45x=4-65x=-2X=-0.4(3)4X+3(2X-3)=12-(X+4)4x+6x-9=12x+184x+6x-12x=18+9-2x=27X=-13.5(4)X-5=-6x-5+5=6x=6(5)](/uploads/image/z/11994150-30-0.jpg?t=%E8%AF%B7%E9%97%AE%2C%E8%BF%9910%E9%81%93%E5%85%B3%E4%BA%8E%E4%B8%80%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B%E7%9A%84%E9%A2%98%E7%9B%AE%E6%88%91%E9%83%BD%E5%81%9A%E5%AF%B9%E4%BA%86%E5%90%97%3F%EF%BC%881%EF%BC%898X-3%283X%2B2%29%3D68x-9x%2B6%3D6-1x%3D6%2B6-1x%3D12X%3D-12%EF%BC%882%EF%BC%898X-3%28X%2B2%29%3D48x-3x%2B6%3D45x%3D4-65x%3D-2X%3D-0.4%EF%BC%883%EF%BC%894X%2B3%282X-3%29%3D12-%28X%2B4%294x%2B6x-9%3D12x%2B184x%2B6x-12x%3D18%2B9-2x%3D27X%3D-13.5%EF%BC%884%EF%BC%89X-5%3D-6x-5%2B5%3D6x%3D6%285%29)
请问,这10道关于一元一次方程的题目我都做对了吗?(1)8X-3(3X+2)=68x-9x+6=6-1x=6+6-1x=12X=-12(2)8X-3(X+2)=48x-3x+6=45x=4-65x=-2X=-0.4(3)4X+3(2X-3)=12-(X+4)4x+6x-9=12x+184x+6x-12x=18+9-2x=27X=-13.5(4)X-5=-6x-5+5=6x=6(5)
请问,这10道关于一元一次方程的题目我都做对了吗?
(1)8X-3(3X+2)=6
8x-9x+6=6
-1x=6+6
-1x=12
X=-12
(2)8X-3(X+2)=4
8x-3x+6=4
5x=4-6
5x=-2
X=-0.4
(3)4X+3(2X-3)=12-(X+4)
4x+6x-9=12x+18
4x+6x-12x=18+9
-2x=27
X=-13.5
(4)X-5=-6
x-5+5=6
x=6
(5) 3X+0.5X=10.5
3.5x=10.5
X=3
(6) 5X-2X=9
3x=9
X=3
(7) X+6x+5x=18
12x=18
X=1.5
(8) -3X+0.5X=10
2.5x=10
X=4
(9) 10x-4.5X=2.5乘以3-5
5.5x=8.75
X=1.59
(10) -6.5X=2.5乘以3-5
-6.5x=8.75
X=-1.34
(第9和第10题的答案只要小数点后面的两个数)
请问,这10道关于一元一次方程的题目我都做对了吗?(1)8X-3(3X+2)=68x-9x+6=6-1x=6+6-1x=12X=-12(2)8X-3(X+2)=48x-3x+6=45x=4-65x=-2X=-0.4(3)4X+3(2X-3)=12-(X+4)4x+6x-9=12x+184x+6x-12x=18+9-2x=27X=-13.5(4)X-5=-6x-5+5=6x=6(5)
(1)8X-3(3X+2)=6
8x-9x+6=6
-1x=0
X=0
(2)8X-3(X+2)=4
8x-3x-6=4
5x=10
X=2
(3)4X+3(2X-3)=12-(X+4)
4x+6x-9=12-x-4
4x+6x+x=8+9
11x=17
X=17/11
(4)X-5=-6
x-5+5=-6+5
x=-1
(5) 正确
(6) 正确
(7) 正确
(8) -3X+0.5X=10
-2.5x=10
X=-4
(9) 如果是乘以3.5,正确
(10) 如果是乘以3.5,正确