Answer:
y = x² - w / 2z (D)
Explanation:
w = x² - 2yz
w - x² = - 2yz
multiply both sides by -1
-1(w - x²) = -1 (-2yz)
-w + x² = 2yz
x² - w = 2yz
2yz = x² - w
divide both sides by 2z
y = x² - w / 2z
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