x=42
4X/7+6=(X+6)*5/8
2个回答
相关问题
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(X+5)/(X+4) ＋(X+8)/(X+7 )=(X+7)/(X+6 )＋(X+6)/(X+5 )
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131-(7X+19)=35、（4.8-2）X+2=7.6、X-（7.6-0.4）=5.4、6（X-3.5）=17.8+
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解方程①5x-1.2=1.8②1.7+7.8-x=5.6③6.4x-x=32.4．
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4.6-5.8x=7.9-7x
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12.7x－8.4=5x－7.6
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解方程 2.8x4-5x=5.8 1.6x+2.4=7.2 3.4x-6=4.2 7.8x+5=44
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1/1x2x3x4+1/2x3x4x5+1/3x4x5x6+1/4x5x6x7+1/5x6x7x8+1/6x7x8x9+
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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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8△2=8+9=17 5△3=5+6+7=18 4△6=4+5+6+7+8+9=39 11△4=?1△X=5050 X=
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(3.5x-7)\6=8-4x 48-(7.5-x)*4=9x