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24-05-2017
Mathematics

contestada

Solve for y.
1/2y + 4x = z

A. y = z−4x/2

B. y = 2 (z − 4x)

C. y = z/2 − 4x

D. y = 2z − 4x

Respuesta :

24-05-2017

B. y = 2 (z − 4x)

4x+.5y=z
4x+5/10y=z
4x+1/2y=z
4x+y/2=z
2(4x)+y/2=z
2*4x+y/2=z
8x+y/2=z
y=2z-8x

2z-8x=2(z−4x)

So the answer is B. y = 2 (z − 4x)

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