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Simplifying
8b2 + -7 = 281
Reorder the terms:
-7 + 8b2 = 281
Solving
-7 + 8b2 = 281
Solving for variable 'b'.
Move all terms containing b to the left, all other terms to the right.
Add '7' to each side of the equation.
-7 + 7 + 8b2 = 281 + 7
Combine like terms: -7 + 7 = 0
0 + 8b2 = 281 + 7
8b2 = 281 + 7
Combine like terms: 281 + 7 = 288
8b2 = 288
Divide each side by '8'.
b2 = 36
Simplifying
b2 = 36
Take the square root of each side:
b = {-6, 6}
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