You can put this solution on YOUR website! 421 exceeds nine times a number by 61. What is the number?
"exceeds a number by 61" means "is 61 more than a number". So 421 is 61 more than 9 times a number".
a number=x
Equation:
421=9x+61
Now to solve it. Subtract 61 from both sides
360=9x
40=x