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4r + 5y = 10
- 1 - 8 = 3y

User Inactivist
by
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1 Answer

3 votes

Answer:

y = -3, r = 25/4

Explanation:

4r+5y = 10

-1 - 8 = 3y <--- This can be simplified to:

-9 = 3y

-3 = y

Now we plug -3 into y in the first equation

4r + 5y = 10

4r + 5(-3) = 10

4r - 15 = 10

4r = 25

r = 25/4

User Bob Risky
by
7.8k points

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