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Simplifying
7y2 + 98 = 777
Reorder the terms:
98 + 7y2 = 777
Solving
98 + 7y2 = 777
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '-98' to each side of the equation.
98 + -98 + 7y2 = 777 + -98
Combine like terms: 98 + -98 = 0
0 + 7y2 = 777 + -98
7y2 = 777 + -98
Combine like terms: 777 + -98 = 679
7y2 = 679
Divide each side by '7'.
y2 = 97
Simplifying
y2 = 97
Take the square root of each side:
y = {-9.848857802, 9.848857802}
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