JaeHAnnenerialavi JaeHAnnenerialavi

24-12-2016
Mathematics

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Which equation is equivalent to 3x – 4y = 8?
A) Y = 3/4x+2
B) Y = -3/4x+2
C) Y = -3/4x-2
D) Y = 3/4x-2

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JcAlmighty JcAlmighty

25-12-2016

The answer is D) Y = 3/4x-2

3x - 4y = 8
Express it in the term of y.

Subtract 3x from both sides:
3x - 4y - 3x = 8 - 3x
- 4y = 8 - 3x

Divide both sides by -4
-4y/-4 = (8 - 3x)-4
y = 8/-4 - 3x/-4
y = -2 - (-3/4x)
y = -2 + 3/4x
y = 3/4x - 2

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