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Theo solved the following problem correctly for homework. 2 x + y = 7. Negative 3 x + y = 2. What is the y-coordinate of his solution? y = negative 3 y = negative 1 y = 1 y = 5
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Theo solved the following problem correctly for homework.

2 x + y = 7. Negative 3 x + y = 2.

What is the y-coordinate of his solution?
y = negative 3
y = negative 1
y = 1
y = 5

User Inu
by
4.8k points

1 Answer

1 vote

Answer:

y=5

Explanation:

OK, let see, 2x+y=7, –3x+y=2:


2x + y = 7 \\ - 3x + y = 2 \\ we \: need \: to \: solve \: the \: equation \: so \\ - 2x - y = - 7 \\ - 3x + y = 2 \\ - 5x = - 5 = = > x = 1 \\ 2(1) + y = 7 = = = > y = 5

User Waspinator
by
4.3k points
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