Answer:
Step-by-step explanation:
[tex]\frac{-2}{3n+7}=15\\\\-2=15*(3n+7)\\\\15*(3n+7)=-2\\\\15*3n+15*7=-2\\\\45n+105=-2\\\\45n=-2-105\\\\45n=-107\\\\n=\frac{-107}{45}[/tex]
