1+a=b-1

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Solution for 1+a=b-1 equation: 


Simplifying
1 + a = b + -1

Reorder the terms:
1 + a = -1 + b

Solving
1 + a = -1 + b

Solving for variable 'a'.

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

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

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

Combine like terms: -1 + -1 = -2
a = -2 + b

Simplifying
a = -2 + b

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