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Simplifying
7b2 + -5 = 163
Reorder the terms:
-5 + 7b2 = 163
Solving
-5 + 7b2 = 163
Solving for variable 'b'.
Move all terms containing b to the left, all other terms to the right.
Add '5' to each side of the equation.
-5 + 5 + 7b2 = 163 + 5
Combine like terms: -5 + 5 = 0
0 + 7b2 = 163 + 5
7b2 = 163 + 5
Combine like terms: 163 + 5 = 168
7b2 = 168
Divide each side by '7'.
b2 = 24
Simplifying
b2 = 24
Take the square root of each side:
b = {-4.898979486, 4.898979486}
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