4×5.8-8x=7.2;
8x=23.2-7.2;
8x=16;
x=2;
如果本题有什么不明白可以追问,
猜你喜欢
- 1写出大于3分之1而小于9分之4,分子是19的所有分数.
- 2一道高一物理题【计算】
- 3方程组:4x+9y=12,3y-2z=1,7x+5z=19/4
- 4根号9分之二 - 根号32 + 根号50 等于?
- 5( )was is yesterday?It was very cold
- 6数学题甲乙两个人共有240元钱,甲的钱数的百分之二十与乙的百分之十二合计是38元,则乙有多少元?
- 7We can't afford this new computer.改写同义句We can't______ ______ ______this new computer.
- 8I want to ask you___places to visit in paris.据意填词
- 9《生命的最后十年》短文答案(一分钟内)要快
- 10数列{an}满足1/an+1-1/an=d叫调和数列,已知数列{1/xn}为调和数列,x1+x2+...+x9=90