kylie1127 kylie1127

31-01-2017
Mathematics

contestada

how do you solve this solution using substitution? Please help me I need the answer fast!

how do you solve this solution using substitution Please help me I need the answer fast class=

Respuesta :

DynaMarie DynaMarie

31-01-2017

-4x+y=16
-5x-y=21
Subtract -5x-y=21 from -4x+y = 16
which leave x=-5
Then substitute -5 for x to get y. In the first equation .

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