Explanation:
x = First number
x + x + 37 = 141 (Because we know that the 2nd number is 37 more than the first, we can just say x + 37.)
2x + 37 = 141 (Combine like terms.)
2x = 104 (Subtract 37 from both sides.)
x = 52 (Divide 2 from both sides.)
Now we know that the first number is 52. Now we just add the 37 to 52 to find the second number.
37 + 52 = 89 = Second number
Proof: 52 + 89 = 141