I thought of a number added 3 and then multiplied by 4 I then added 7 and the result was 63 find the number

Let's call the unknown number "x".

According to the given information, the number was added by 3 and then multiplied by 4. So we have the equation: 4(x + 3) = 63.

Now, let's solve this equation step by step:

4(x + 3) = 63
4x + 12 = 63 (distributing 4 to both terms inside parentheses)
4x = 63 - 12 (subtracting 12 from both sides)
4x = 51
x = 51/4

Therefore, the number is 51/4, which can also be written as 12.75.