Help needed developing simultaneous set of equations

Nessy

New member
Joined
May 1, 2019
Messages
7
Very stuck on simultaneous formulas for this worded question.
Simon earns 6 times as much money as his brother Ray. With their weekly wages they have decided to purchase a jetski. The jetski will cost $4500 and their parents will give them $700. Simon will contribute two weeks pay and Ray will contribute seven weeks pay.
Simultaneous equations needed to ascertain the weekly wage for both Simon and Ray.
Equations are being solved with elimination method
 
Can you show us where you're stuck? What variables did you define, and what equations did you write?
 
all pretty straightforward

\(\displaystyle s=6r\)
\(\displaystyle 2s+7r+700=4500\)

can you now set up the system of equations and use elimination to solve?
 
all pretty straightforward

\(\displaystyle s=6r\)
\(\displaystyle 2s+7r+700=4500\)

can you now set up the system of equations and use elimination to solve?
Thank you, I had the first equation incorrect, second one I had the same, Many thanks
 
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