3x+2
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3x+2
16
27 2+7 = 9 X 3 = 27
x + x + 1 + x + 2 = 3x + 3 = 3 times the middle number
The equation for three times the sum of a number ( x ) and five times the number can be expressed as ( 3(x + 5x) = 36 ). Simplifying this gives ( 3(6x) = 36 ), or ( 18x = 36 ). To solve for ( x ), divide both sides by 18, resulting in ( x = 2 ).