hannahbrooke2
hannahbrooke2
29-01-2017
Geography
contestada
How do I find y on 13?
Respuesta :
JustScience
JustScience
29-01-2017
9y - 77 = 12x - 28
therefore you first need to find x:
7x + 12 = 12x - 28
-5x = -40
x = 8
then you use x = 8
9y - 77 = 12×8 - 28
9y = 96 - 28 + 77
9y = 145
y = 16.11
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