60% of a number is 7 more than 25%. What's the number? (solve the equation) The answer I know is 20... But I still don't understand. Tell me why I have to go like this every step

60% of a number is 7 more than 25%. What's the number? (solve the equation) The answer I know is 20... But I still don't understand. Tell me why I have to go like this every step


This number is X
60%x=25%x+7
0.6x=0.25x+7
0.6x-0.25x=7
0.35x=7
x=7/0.35
x=20



A number is 2 more than 3 / 5 of 25. What's the number? (solve the equation)


From the theme
x-2=25×3/5
x=15+2
x=17