Well, first off, to solve for this, we can write the expression and then solve from there. Expression: 8x + 3 = 29 So, now that we have our expression, we can solve for our missing number using the balancing method. 8x + 3 = 29 8x + 3 - 3 = 29 - 3 (we subtracted the three because we needed to get rid of the three on the left side of the equation do now we are just left with 8x = 26. 8x = 26 8x/8 = 26/8. (So, the 8 on the left side cancels out and we are just left with X. X = 26/8 X = 13/4 X = 3 and 1/4 So, in conclusion, the answer to this question is: X = 3 and 1/4 as a mixed number or 13/4 as an improper fraction. Glad I could help!