45+12=b

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Solution for 45+12=b equation:


Simplifying
45 + 12 = b

Combine like terms: 45 + 12 = 57
57 = b

Solving
57 = 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.
57 + -1b = b + -1b

Combine like terms: b + -1b = 0
57 + -1b = 0

Add '-57' to each side of the equation.
57 + -57 + -1b = 0 + -57

Combine like terms: 57 + -57 = 0
0 + -1b = 0 + -57
-1b = 0 + -57

Combine like terms: 0 + -57 = -57
-1b = -57

Divide each side by '-1'.
b = 57

Simplifying
b = 57

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