b^2+7b=7b+9

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Solution for b^2+7b=7b+9 equation: 


Simplifying
b2 + 7b = 7b + 9

Reorder the terms:
7b + b2 = 7b + 9

Reorder the terms:
7b + b2 = 9 + 7b

Add '-7b' to each side of the equation.
7b + -7b + b2 = 9 + 7b + -7b

Combine like terms: 7b + -7b = 0
0 + b2 = 9 + 7b + -7b
b2 = 9 + 7b + -7b

Combine like terms: 7b + -7b = 0
b2 = 9 + 0
b2 = 9

Solving
b2 = 9

Solving for variable 'b'.

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

Simplifying
b2 = 9

Take the square root of each side:
b = {-3, 3}

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