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Simplifying
5k2 + -7 = 238
Reorder the terms:
-7 + 5k2 = 238
Solving
-7 + 5k2 = 238
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 + 5k2 = 238 + 7
Combine like terms: -7 + 7 = 0
0 + 5k2 = 238 + 7
5k2 = 238 + 7
Combine like terms: 238 + 7 = 245
5k2 = 245
Divide each side by '5'.
k2 = 49
Simplifying
k2 = 49
Take the square root of each side:
k = {-7, 7}
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