Question 52280
Start by getting the variables (n in this case) onto one side of the equals.
{{{7-2n = n-14}}} Add 2n to both sides of the equation.
{{{7 = 3n-14}}} Now add 14 to both sides.
{{{21 = 3n}}} Finally, divide both sides by 3.
{{{7 = n}}} or {{{n = 7}}}