f9fteen less than four times a number more than 49
Let's represent the unknown number as "x".
Four times this number would be 4 * x, and "fifteen less than four times a number" would be 4 * x - 15.
So, the expression "four times a number more than 49" would be 4 * x + 49.
Therefore, the equation would be:
4 * x + 49 = 4 * x - 15.