How do you determine whether (6,4) is a solution of 7x+9y=2?

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How do you determine whether (6,4) is a solution of 7x+9y=2?

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Answer 1 · 2018-03-06T11:18:42

NO

Explanation:

We have, $7 x + 9 y = 2$ $7x+9y=color(red)(2)$
For (6,4), we take $x = 6 and y = 4$ $x=6 and y=4$ in LHS.
So, $L H S = 7 (6) + 9 (4) = 42 + 36 = 78 \neq 2$ $LHS=7(6)+9(4)=42+36=78!=color(red)(2)$
Hence, $L H S \neq R H S \Rightarrow (6, 4)$ $LHS!=RHSrArr(6,4)$ , is not a solution of 7x+9y=2

Answer 2 · 2018-03-06T11:21:12

If a given plane point is solution of a linear equation, then it verifies the equation#. Lets see

Explanation:

$(6, 4)$ $(6,4)$ are the coordinates of a plane point where the first is the value of x, and the second one is the value of y.

$7 \cdot 6 + 9 \cdot 4 = 42 + 36 = 78 \neq 2$ $7·6+9·4=42+36=78!=2$ . Then, the given point is not a solution of $7 x + 9 y = 2$ $7x+9y=2$

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How do you determine whether (6,4) is a solution of 7x+9y=2?

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