mcineus21
mcineus21
20-02-2017
Mathematics
contestada
Is (4,-5) a possible solution to 5x + 2y = 8?
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mindlessmill
mindlessmill
20-02-2017
No because x=4 and y=-5 and when you plug it in you get 5(4)+2(-5)=8 20+-10=8 and 10= does not work so it is not a possible solution.
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apologiabiology
apologiabiology
20-02-2017
(x,y)
(4,-5)
subsitute and see if true
sub 4 for x and -5 for y
5(4)+2(-5)=8
20-10=8
10=8
false
it is not a possible solution
Answer Link
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