[tex]21 > 9 - 2y[/tex]

Answer:
y > −6
Step-by-step explanation:
Step 1: Simplify both sides of the inequality.
21>−2y+9
Step 2: Flip the equation.
−2y+9<21
Step 3: Subtract 9 from both sides.
−2y+9−9<21−9
−2y<12
Step 4: Divide both sides by -2.
−2y
−2
<
12
−2
y>−6