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

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

#5 + 2 = 8#

#7 = 8#

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