We rewrite the inequality so that it matches the left side of the "then" part.

a)By adding 8 to each side, we have: x+8>5+8

x+8>13

So, insert>.

b)Multiply both sides by -5. Recall that when we multyply of divide both sides of an inequality by a negative number, we change the direction of the inequality: -5x

Add 18 to both sides: -5x+18

So, insert <.

a)By adding 8 to each side, we have: x+8>5+8

x+8>13

So, insert>.

b)Multiply both sides by -5. Recall that when we multyply of divide both sides of an inequality by a negative number, we change the direction of the inequality: -5x

Add 18 to both sides: -5x+18

So, insert <.