Question

The sum of two consecutive integer is 131. Find the integer

Answer 1

$x,\ x+1-\text{two consecutive integer}\\\\\text{The equation}\\\\x+(x+1)=131\ \ \ \ \ |\text{use associative property}\\\\(x+x)+1=131\\\\2x+1=131\ \ \ \ \ |\text{subtract 1 from both sides}\\\\2x=130\ \ \ \ |\text{divide both sides by 2}\\\\x=65\\\\x+1=65+1=66$

Answer: 65 and 66

Answer 2

$n+n+1=131\\\\2n=130\\\\n=65\\\\n+1=66$

65 and 66