Hey there!
6s + 21 > 63
SUBTRACT 21 to BOTH SIDES
6s + 21 - 21 > 63 - 21
CANCEL out: 21 - 21 because it give you 0
KEEP: 63 - 21 because it help compare to the s-value.
NEW EQUATION: 6s > 63 - 21
SIMPLIFY IT!
6s > 42
DIVIDE 6 to BOTH SIDES
6s/6 > 42/6
CANCEL out: 6/6 because it give you 1
KEEP: 42/6 because it help compare to the s-value
NEW EQUATION: s > 42/6
SIMPLIFY IT!
s > 7
Therefore, your answer is: s > 7
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)