9.9k views
2 votes
-5x+7y=5x+2y
x=-5
y=?
what is y

2 Answers

5 votes

Answer:

y=2x

Explanation:

User Dagobert Renouf
by
6.0k points
2 votes

Answer:

y = -10

Explanation:

Step 1: Substitute -5 for x in the equation -5x + 7y = 5x + 2y

-5x + 7y = 5x + 2y

-5(-5) + 7y = 5(-5) + 2y

Step 2: Solve for y

-5(-5) + 7y = 5(-5) + 2y

25 + 7y + 25 - 7y = -25 + 2y + 25 - 7y

50 / -5 = -5y / -5

-10 = y

Answer: y = -10

User HTU
by
5.6k points