Answer:
x = 20 + 18
Explanation:
The variable 'x' represents the amount of money Carlos had before he spent the $18. If he spent $18 but still had $20 left, that would mean he would have $38.
x = 38
X - 18 = 20
After writing the equation, add 18 to both sides. You'll end up with an equation of X = 38. Hope this helps
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