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I’ve done this before and I got it right, but sadly I forgot how to do it :( does anyone know how to solve ?

I’ve done this before and I got it right, but sadly I forgot how to do it :( does anyone know how to solve ?
asked 35.6k views
0 votes
I’ve done this before and I got it right, but sadly I forgot how to do it :( does anyone know how to solve ?

I’ve done this before and I got it right, but sadly I forgot how to do it :( does-example-1
asked
User Rdaniels
by
7.9k points

1 Answer

5 votes
Solve the system if equations by subtracting:
We get 5L = 45
L = 9

Substituting for L in s = 20L + 75 gives s = 255
So the second choice I the correct one
answered
User Llrs
by
7.5k points
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