How do you determine (5,2) is a solution to x+y=8?

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How do you determine (5,2) is a solution to x+y=8?

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Answer 1 · 2016-11-28T15:33:35

$7$ $7$ does not equal $8$ $8$ therefore $(5, 2)$ $(5,2)$ is not a solution for this equation.

Explanation:

Substitute $5$ $5$ for $x$ $x$ and $2$ $2$ for $y$ $y$ in the equation. If the result equals $8$ $8$ it is a solution. If it does not equal $8$ $8$ it is not a solution.

$5 + 2 = 8$ $5 + 2 = 8$

$7 = 8$ $7 = 8$

$7$ $7$ does not equal $8$ $8$ therefore $(5, 2)$ $(5,2)$ is not a solution for this equation.

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How do you determine (5,2) is a solution to x+y=8?

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