DJS1147 DJS1147

10-10-2016
Mathematics

contestada

Solve for x y=7x-7z-9
A)x=y-7z-9/7
B)x=y+7z+9/7
C)x=y+z+9/7
D)x=y-z-9/7

Respuesta :

texaschic101 texaschic101

10-10-2016

y = 7x - 7z - 9
y + 7z + 9 = 7x
(y + 7z + 9) / 7 = x

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Librocubicularist Librocubicularist

10-10-2016

The answer is D. x=y-z-9/7

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