Mathematics, 03.05.2021 20:20, boog89

NO LINKS! Add the equations. What value
belongs in the green box?
-2x + 4y = 15
+ -12x – 4y = -8
-14x + [?] = [ ]

Answers: 3

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NO LINKS! Add the equations. What value
belongs in the green box?
-2x + 4y = 15
...