Five times a number is equal to three times the sum of the number and 4. What is the number?
Can you tell me how to do this?
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Answered by
1
Answer:
6
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Make the equation first.
5x = 3(x+4)
Then this is a matter of solving.
5x = 3x +12
5x - 3x = 12
2x = 12
x = 12/2
x = 6
You can verify this by replacing 6 as x.
Then,
5 x 6 = 3(6+4)
30 = 3 x 10
30 = 30
LHS = RHS
Hence verified.
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