4800/x=6000/(x+50)，
After naming and sorting, 4x+200=5x,
x=200
After testing, x=200 is the solution of the original equation, so x+50=250.
The per capita donation is 4800/x=24,
A:
2. If B walks x kilometers per hour, then A walks (x+0.5) kilometers per hour.
According to the meaning of the question, (2+18)/(x+0.5) =18/x.
Multiply both sides by x(x+0.5), remove the denominator and sort it out. 10x=9x+4.5.
Solution, x=4.5
Solution of test equation
Substitute again, x+0.5=5.
A:
3. it takes x days for group b to complete the project alone.
According to the meaning of the question,1/60 * 20+(1/60+1/x) * 24 =1.
Solution, x=
Is this another question?
The data is wrong.