X=1.4X-6.4 X=1.4X-6.4
3个回答
6.4=1.4×-×
6.4=0.4×
×=6.4÷0.4
×=16
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相关问题
6(x+1)=4(x+4) 6(x-1)=4(3-2x) 5-3x=8-4x 5-(x+3)=4-3x 1/2(x+6)
﹙2-x﹚/﹙1-x﹚-﹙4-x﹚/﹙6-x﹚=1-﹙x²-4﹚/﹙x²-7x+6﹚
解方程 9.6-5x=4.1 0.4*6+x=4 3x/6=1.5 1.3x-0.4x=6.3
4x/(x²-4)-(2x+6)/(x²+x-6)=1-(x-3)/(x²-x-6)
①1/4x-4x=1/2 ②50%x-5/6=5/12 ③6x+4(20-x)
4x²-4x+1=x²+6x+9
4x-15=4.6 4x÷ 4-15 =4.6÷4 x-15=1.
(x+4)(3x+6)=2x+4 (3x- 1)²+4x²=0 x²+5=2根号6x-1
1/2x4+1/4x6+1/6x8+.+1/2010x2012
2x4/1+4x6/1+6x8/1+…+2006x2008/1=?