The system of equations that represent the situation are 1.20R + 2B = 70, and R + B = 90.
<h3>What are the system of equations?</h3>
The system of equations are sets of equations that have to be solved simultaneously in order to determine their required values. They are often referred to as simultaneous equations.
To learn more about simultaneous equations, please check: brainly.com/question/25875552
i used polynomial division.. i hope this helps :)
Answer:
x=6
Step-by-step explanation:
3+x=9
-3 -3
x=6
I did the work for you. I also showed my work. Hope it helped
