20b=18b-4

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Solution for 20b=18b-4 equation: 


Simplifying
20b = 18b + -4

Reorder the terms:
20b = -4 + 18b

Solving
20b = -4 + 18b

Solving for variable 'b'.

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

Add '-18b' to each side of the equation.
20b + -18b = -4 + 18b + -18b

Combine like terms: 20b + -18b = 2b
2b = -4 + 18b + -18b

Combine like terms: 18b + -18b = 0
2b = -4 + 0
2b = -4

Divide each side by '2'.
b = -2

Simplifying
b = -2

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