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Simplifying
2k2 + 7 = 105
Reorder the terms:
7 + 2k2 = 105
Solving
7 + 2k2 = 105
Solving for variable 'k'.
Move all terms containing k to the left, all other terms to the right.
Add '-7' to each side of the equation.
7 + -7 + 2k2 = 105 + -7
Combine like terms: 7 + -7 = 0
0 + 2k2 = 105 + -7
2k2 = 105 + -7
Combine like terms: 105 + -7 = 98
2k2 = 98
Divide each side by '2'.
k2 = 49
Simplifying
k2 = 49
Take the square root of each side:
k = {-7, 7}
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