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解方程.2x-5.2=2.84.3x-1.8x=97.513(x+5)=1692x-20=42x+2.8×2=10.4x+2.4x=5.1X-0.36x=163(x+2.1)=1解方程.2x-5.2=2.84.3x-1.8x=97.513(x+5)=1692x-20=42x+2.8×2=10.4x+2.4x=5.1X-0.36x=163(x+2.1)=10.542x+25x=1344x-3×9=295(x+1.

题目详情
解方程.2x-5.2=2.84.3x-1.8x=97.513(x+5)=1692x-20=42x+2.8×2=10.4x+2.4x=5.1X-0.36x=163(x+2.1)=1
解方程.
2x-5.2=2.84.3x-1.8x=97.513(x+5)=169



2x-20=42x+2.8×2=10.4x+2.4x=5.1



X-0.36x=163(x+2.1)=10.542x+25x=134



4x-3×9=295(x+1.5)=17.5(x-3)÷2=7.5



2.5x=143.8+x=6.3x-7.9=2.6.


解方程.
2x-5.2=2.84.3x-1.8x=97.513(x+5)=169



2x-20=42x+2.8×2=10.4x+2.4x=5.1



X-0.36x=163(x+2.1)=10.542x+25x=134



4x-3×9=295(x+1.5)=17.5(x-3)÷2=7.5



2.5x=143.8+x=6.3x-7.9=2.6.
解方程.
2x-5.2=2.84.3x-1.8x=97.513(x+5)=169



2x-20=42x+2.8×2=10.4x+2.4x=5.1



X-0.36x=163(x+2.1)=10.542x+25x=134



4x-3×9=295(x+1.5)=17.5(x-3)÷2=7.5



2.5x=143.8+x=6.3x-7.9=2.6.
解方程.
2x-5.2=2.84.3x-1.8x=97.513(x+5)=169



2x-20=42x+2.8×2=10.4x+2.4x=5.1



X-0.36x=163(x+2.1)=10.542x+25x=134



4x-3×9=295(x+1.5)=17.5(x-3)÷2=7.5



2.5x=143.8+x=6.3x-7.9=2.6.
解方程.
2x-5.2=2.84.3x-1.8x=97.513(x+5)=169



2x-20=42x+2.8×2=10.4x+2.4x=5.1



X-0.36x=163(x+2.1)=10.542x+25x=134



4x-3×9=295(x+1.5)=17.5(x-3)÷2=7.5



2.5x=143.8+x=6.3x-7.9=2.6.


















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答案和解析
2x-5.2=2.8,2x-5.2+5.2=2.8+5.2,2x=8, 2x÷2=8÷2, x=4,4.3x-1.8x=97.5, 2.5x=97.5,2.5x÷2.5=97.5÷2.5, x=39,13(x+5)=169, 13x+65=169,13x+65-65=169-65,13x=104, 13x÷13=104÷13, x=8,2x-2...