SOLUTION: The sum of 10 and a number is 3 times the number

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Question 921290: The sum of 10 and a number is 3 times the number
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

let's a number be x
given:
the sum of 10 and a number is 3 times the number:
10%2Bx=3x now we can find a number
10=3x-x
10=2x
10%2F2=x
5=x

check:
10%2Bx=3x
10%2B5=3%2A5
15=15