31=43-2b

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Solution for 31=43-2b equation:


Simplifying
31 = 43 + -2b

Solving
31 = 43 + -2b

Solving for variable 'b'.

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

Add '2b' to each side of the equation.
31 + 2b = 43 + -2b + 2b

Combine like terms: -2b + 2b = 0
31 + 2b = 43 + 0
31 + 2b = 43

Add '-31' to each side of the equation.
31 + -31 + 2b = 43 + -31

Combine like terms: 31 + -31 = 0
0 + 2b = 43 + -31
2b = 43 + -31

Combine like terms: 43 + -31 = 12
2b = 12

Divide each side by '2'.
b = 6

Simplifying
b = 6

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