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Simplifying
81y2 + 5 = 54
Reorder the terms:
5 + 81y2 = 54
Solving
5 + 81y2 = 54
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '-5' to each side of the equation.
5 + -5 + 81y2 = 54 + -5
Combine like terms: 5 + -5 = 0
0 + 81y2 = 54 + -5
81y2 = 54 + -5
Combine like terms: 54 + -5 = 49
81y2 = 49
Divide each side by '81'.
y2 = 0.6049382716
Simplifying
y2 = 0.6049382716
Take the square root of each side:
y = {-0.777777778, 0.777777778}
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