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Simplifying
1255r2 + -180 = 0
Reorder the terms:
-180 + 1255r2 = 0
Solving
-180 + 1255r2 = 0
Solving for variable 'r'.
Move all terms containing r to the left, all other terms to the right.
Add '180' to each side of the equation.
-180 + 180 + 1255r2 = 0 + 180
Combine like terms: -180 + 180 = 0
0 + 1255r2 = 0 + 180
1255r2 = 0 + 180
Combine like terms: 0 + 180 = 180
1255r2 = 180
Divide each side by '1255'.
r2 = 0.1434262948
Simplifying
r2 = 0.1434262948
Take the square root of each side:
r = {-0.378716642, 0.378716642}
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