Answer:
Step-by-step explanation:
-4b^2+6b-9-(7b^2-2b-5)=
-4b^2+6b-5-7b^2+2b+5=
-11b^2+8b-4
191
955 = 5x
divide both sides by 5 to get x by itself
x = 191
291. Hope this helps :)
