5x-4x=2*1.8,5x-2+3x=3.6,x+4x=20.3,8x+10-3x=30,10.5-0.5x+0.5=1,x+2x+5x=10,解方程,5x-4x=2*1.8,5x-2+3x=3.6,x+4x=20.3,8x+10-3x=30,10.5-0.5x+0.5=1,x+2x+5x=10,0.8x-0.2+1.2x=1.8,2.4x+0.6+1.6=8
来源:学生学帮网 编辑:学帮网 时间:2024/06/05 15:26:57
5x-4x=2*1.8,5x-2+3x=3.6,x+4x=20.3,8x+10-3x=30,10.5-0.5x+0.5=1,x+2x+5x=10,解方程,
5x-4x=2*1.8,5x-2+3x=3.6,x+4x=20.3,8x+10-3x=30,10.5-0.5x+0.5=1,x+2x+5x=10,0.8x-0.2+1.2x=1.8,2.4x+0.6+1.6=8
5x-4x=2*1.8 x=3.6 / 5x-2+3x=3.6 8x=3.6+2
8x=5.6 x=0.7 / x+4x=20.3 5x=20.3 x=4.06
/ 8x-10-3x=30 5x=40 x=8 / 10.5-0.5x+0.5=1 11-0.5x=1 0.5x=11+1 x=6
/ x+2x+5x=10 8x=10 x=1.25 /
0.8x-0.2+1.2x=1.8 2x-0.2=1.8 2x=2 x=1 /
2.4x+0.6+1.6=8 2.4x=8-2.2 2.4x=5.8
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
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