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43 votes
43 votes
Is -7,4 a solution to 4x+5y=-13

User JAM
by
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2 Answers

22 votes
22 votes

Answer:

No

Explanation:

Given that:

-7, 4

Thus,

4(-7) + 5(4)

-28 + 20 = -8

- 8 ≠ -13

Doesn't equal x

Hence, Answer = No -7,4 is not a solution to 4x+5y = -13

~Lenvy~

User Camdub
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2.7k points
21 votes
21 votes


\qquad\qquad\huge\underline{{\sf Answer}}☂

Let's evaluate the equation using the coordinates of point (-7 , 4) to check if it's a solution for the given function.


\qquad \sf  \dashrightarrow \: 4x + 5y = - 13


\qquad \sf  \dashrightarrow \: 4( - 7) + 5(4) = - 13


\qquad \sf  \dashrightarrow \: - 28 + 20 = - 13


\qquad \sf  \dashrightarrow \: - 8 \\ot = - 13

Therefore, we can conclude that it's not a solution for the given function ~

User MikeZ
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3.1k points