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Simplifying
7y2 + -5 = 76
Reorder the terms:
-5 + 7y2 = 76
Solving
-5 + 7y2 = 76
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 + 7y2 = 76 + 5
Combine like terms: -5 + 5 = 0
0 + 7y2 = 76 + 5
7y2 = 76 + 5
Combine like terms: 76 + 5 = 81
7y2 = 81
Divide each side by '7'.
y2 = 11.57142857
Simplifying
y2 = 11.57142857
Take the square root of each side:
y = {-3.401680257, 3.401680257}
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