X=2
3X-6.4=12.8-20%X
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相关问题
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2=1x2 2+4=6=2x3 2+4+6=12=3x4 2+4+6+8=20=4x5
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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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根据2+4=6=2x3 2+4+6=12=3x4 2+4+6+8=20=4x5 2+4+6+8+10=30=5x6 计算
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根据2+4=6=2x3 2+4+6=12=3x4 2+4+6+8=20=4x5 2+4+6+8+10=30=5x6 计算
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如果4x+5y-3=20,那么4x+5y+8=(),12x+15y-6=()
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8x减4减20x加2等于6x加3减12求x
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30-3(3-X)=4X 3X+12*6=15X+12 4X-2(50-X)=20 12(X-13)=10(X+3) 1
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解比例.X:36=3:540.6:0.8=x:20[1/2]:x=[8/12]:12[2/7]=[8/x].
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8+2x-4=12 3x+x+6=26
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3X+6=12 40-4X=20 5+6X=35 18=2X-6 20=38-2X = = = = = = = = =