a positive number is 5 times another number if 21 is added to both the number then one of the sum numbers becomes twice other new number what are the numbers
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Answer:
The numbers are 7 and 35.
Step-by-step explanation:
Let the smaller number be x
Then larger number is 5x
If 21 is added to both the number
The larger number becomes twice the second number
5x+21 = 2(x+21)
5x + 21 = 2x + 42
5x - 2x = 42 - 21
3x = 21
x = 21/3
x = 7
The smaller number is 7
the other number is 5x = 5×7 = 35
Proof:
5x+21 = 2(x+21)
35+21 = 2(7+21
56 = 2(28)
56 = 56
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