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Fantom [35]
3 years ago
10

Given the system of equations, what is the y-coordinate of the solution?

Mathematics
2 answers:
dolphi86 [110]3 years ago
7 0
5(5-3/2y) - 4y = 7

Simplify:

25 - 15/2y - 4y = 7
-15/2 y - 8/2 y = 7-25 
23/2 y = 18
y = 18 * 2/23 = 36/23

bulgar [2K]3 years ago
6 0
If you plug in the second equation (x=5-3/2y) into the first, you get:

5(5-3/2y) - 4y = 7

Simplify:

25 - 15/2y - 4y = 7
-15/2 y - 8/2 y = 7-25 
23/2 y = 18
y = 18 * 2/23 = 36/23

answer B!
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