The Number Puzzle
A number is multiplied by 4, then 7 is added.
The result is the same as when 3 times the number is increased by 19.
What is the number?
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Let the number be x.
ReplyDelete4x + 7 = 3x + 19
Subtract 3x from both sides:
x + 7 = 19
Subtract 7 from both sides:
x = 12
Answer:
12