3+42=b

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Solution for 3+42=b equation:


Simplifying
3 + 42 = b

Combine like terms: 3 + 42 = 45
45 = b

Solving
45 = 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.
45 + -1b = b + -1b

Combine like terms: b + -1b = 0
45 + -1b = 0

Add '-45' to each side of the equation.
45 + -45 + -1b = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -1b = 0 + -45
-1b = 0 + -45

Combine like terms: 0 + -45 = -45
-1b = -45

Divide each side by '-1'.
b = 45

Simplifying
b = 45

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