31=b+27

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Solution for 31=b+27 equation:


Simplifying
31 = b + 27

Reorder the terms:
31 = 27 + b

Solving
31 = 27 + 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.
31 + -1b = 27 + b + -1b

Combine like terms: b + -1b = 0
31 + -1b = 27 + 0
31 + -1b = 27

Add '-31' to each side of the equation.
31 + -31 + -1b = 27 + -31

Combine like terms: 31 + -31 = 0
0 + -1b = 27 + -31
-1b = 27 + -31

Combine like terms: 27 + -31 = -4
-1b = -4

Divide each side by '-1'.
b = 4

Simplifying
b = 4

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