2x + 5 = 15
2x = 10
x = 5
The number is 5.
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5*(3+x)=15+5x Fifteen plus five times that number
x = 11
Let 'n' represent any number, and 'S' represent sum. S = 5 + 2n
"the sum of 2" and "twice" "a number" "is" "36"2+2x=36 â–
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