Isolate n:
5n + 3 > -10
Subtract 3 from both sides:
5n > -13
Divide both sides by 5:
n > -13/5
n > -2.6
An integer is a whole number, so the smallest whole number that would make the statement true would be -2:
5(-2) + 3 = -10 +3 = -7
5(-3) + 3 = -15 + 3 = -10
Since -7 is greater than -10, the answer is -2