1.x=4 2.x=50 3.x=1 4.x=1 5.x=2 6.x=1.5 7.x=-1.6 8.x=0.04 9.x=9 10.不是一个等式,没法做.
1)2x+8=16 (2)x/5=10 (3)x+7x=8 (4)9x-3x=6 (5)6x-8=4 (6)5x+x=9
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4x15/2= 12/5x8= 3/1x4/1= 9/8x10= 6x12/11= 9/2x5/3= 14/6x9/7=
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(1)5+2x=1 (2)8-x=3x+2 (3)10x-3=9 (4)6x-7=4x-5 (5)1/2x-6=3/4x
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1/1x2x3x4+1/2x3x4x5+1/3x4x5x6+1/4x5x6x7+1/5x6x7x8+1/6x7x8x9+
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3x+6=18 2x-7.5=8.5 16+8x=40 4x-3X9=29
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①27x-4x=34.5②3x2.8=4.3③12x-24=6④5.8+2x=20五6.9x-4.1=9.7⑥3.6x+
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1&6=1X2X3X4X5,6&6=6X7X8X9X10.据此求:(2&5)÷(6&5)
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2.1X+7.9X=6.9 5X+0.8×2=7.12X+5.8=8.2 6X-3×4=1.2
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10x9-9x8+8x7-7x6+6x5-5x4+4x3-3x2+2x1奥数作业,请问大家怎么做,谢谢!
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4.5x-6.9=30.4.8+7x=6.9.0.8x-1.2*4=3.2.
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1/4x-1/2=3/4;7x-5/4=3/8;2x-1/6=5x+1/8;1/2x-7=9x-2/6;1/5x-1/2