Hey there!
15 - (-9x - 5)
= 15 - 1(-9x - 5)
DISTRIBUTE -1 WITHIN the
PARENTHESES
= 15 - 1(-9x) - 1(-5)
= 15 + 9x + 5
COMBINE the LIKE TERMS
= (15 + 5) + (9x)
= 20 + 9x
= 9x + 20
Therefore, your answer is: 9x + 20
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)