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Make x the subject of the formula:y = \(\frac {3x - 9c}...

Make x the subject of the formula:y = 3x9c4x+5d

A.

x = (9c5dy)4y3

B.

x = 9c+5dy4y3

C.

x = (9c+5dy)4y3

D.

x = (9c+5dy)4y3

Correct answer is D

y = 3x9c4x+5d

y1=3x9c4x+5d

= y(4x + 5d) = 3x - 9c

= 4xy + 5dy = 3x - 9c

= 4xy - 3x = -9c - 5dy

= (4y - 3)x = -9c - 5dy

= x = 9c5dy4y3

x = (9c+5dy)4y3