Answer:
a = 20
Step-by-step explanation:
7a + 2a + a − 9a = 20
Combine like terms
10a -9a = 20
a =20
Answer:
(-5, -5)
Step-by-step explanation:
Answer:
x<-2.5 =(2x+5)-(2x-5) 2. 5-5
3.0
Step-by-step explanation:
PLz make brainlestiset answer
Answer:
What? I do not even see what you are trying to get at. I have a masters in math so I could help. Whats the question you are having an issue with ?
Step-by-step explanation: