5*6x+5*10(x+2)=580
1个回答
5*6x+5*10(x+2)=580
5(6x+10x+20)=580
6x+10x+20=116
16x=96
x=6
相关问题
十万火急!几道初一数学题一:解方程组1. {15*(y-5)=x-5 2*(y+15)+6=x+152. {(580-x
2.5x+10x-5=6x+21
解方程10x=5.5 x-[5/6]=[5/8]x÷1.2=6 1.2x-x=72.
8x-6=3-x -7x+4=2x-5 10x-6=7x+12 1-5/2x=2x+10
5x/(x2+x-6)+(2x-5/x2-x-12)=7x-10/x2-6x+8
6x+20=(10x+6x+20)*2/5
(6x+20)/10x=2/(5-2)
11(6-x)/3(x-4)=10(5-x)/3(x-4)-5(6-x)/(x-2)
1&6=1X2X3X4X5,6&6=6X7X8X9X10.据此求:(2&5)÷(6&5)
2X+6Y=10,2X+3Y=5.5,求x,