20=b-7

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Solution for 20=b-7 equation:


Simplifying
20 = b + -7

Reorder the terms:
20 = -7 + b

Solving
20 = -7 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
20 + -1b = -7 + b + -1b

Combine like terms: b + -1b = 0
20 + -1b = -7 + 0
20 + -1b = -7

Add '-20' to each side of the equation.
20 + -20 + -1b = -7 + -20

Combine like terms: 20 + -20 = 0
0 + -1b = -7 + -20
-1b = -7 + -20

Combine like terms: -7 + -20 = -27
-1b = -27

Divide each side by '-1'.
b = 27

Simplifying
b = 27

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