Question 1120417
The square of a number is added to five.
n^2 + 5
:
 The sum is then divided by six. The result is 7/2.
{{{(n^2+5)/6}}} = {{{7/2}}}
cros smultiply
2(x^2+5) = 6 * 7
2x^2 + 10 = 42
2x^2 =42 - 10
2x^2 = 32
x^2 = {{{32/2}}}
x^2 = 16
x = {{{sqrt(16)}}}
x = 4