Solve the system of equations and choose the correct answer from the list of options. x − y = 7 y = 3x + 12

asked Nov 19, 2018 20.7k views

2 votes

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4 votes

x-y=7
y=3x+12|-3x

x-y=7
-3x+y=12
---------------------,-
-2x=19
x=-19/2

Gaetane answered Nov 25, 2018

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