Answer: 8x+4
Step-by-step explanation:
Distribute the Negative Sign:
=9x+7+−1(x+3)
=9x+7+−1x+(−1)(3)
=9x+7+−x+−3
Combine Like Terms:
=(9x+−x)+(7+−3)
=8x+4
Answer:
8x+4
