17Trinity17 17Trinity17

22-10-2015
Mathematics

contestada

Solve the equation for y.

4x - 5y = 9

A. y = -5/4x = -5/9
B. y = -4x = 9
C. y = 5/4x + 9/4
D. y = 4/5x - 9/5

Respuesta :

22-10-2015

[tex] 4x - 5y = 9 \\ -5y=9-4x \\ 5y= 4x-9 \\ y=\frac{4x}{5} -\frac{9}{5} \\y=\frac{4}{5}x -\frac{9}{5} [/tex]

D. y = 4/5x - 9/5

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