78+b=40

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Solution for 78+b=40 equation: 


Simplifying
78 + b = 40

Solving
78 + b = 40

Solving for variable 'b'.

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

Add '-78' to each side of the equation.
78 + -78 + b = 40 + -78

Combine like terms: 78 + -78 = 0
0 + b = 40 + -78
b = 40 + -78

Combine like terms: 40 + -78 = -38
b = -38

Simplifying
b = -38

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