b^2+8-12=0

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Solution for b^2+8-12=0 equation: 


Simplifying
b2 + 8 + -12 = 0

Reorder the terms:
8 + -12 + b2 = 0

Combine like terms: 8 + -12 = -4
-4 + b2 = 0

Solving
-4 + b2 = 0

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '4' to each side of the equation.
-4 + 4 + b2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + b2 = 0 + 4
b2 = 0 + 4

Combine like terms: 0 + 4 = 4
b2 = 4

Simplifying
b2 = 4

Take the square root of each side:
b = {-2, 2}

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