3x+b=x+a

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Solution for 3x+b=x+a equation: 


Simplifying
3x + b = x + a

Reorder the terms:
b + 3x = x + a

Reorder the terms:
b + 3x = a + x

Solving
b + 3x = a + x

Solving for variable 'b'.

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

Add '-3x' to each side of the equation.
b + 3x + -3x = a + x + -3x

Combine like terms: 3x + -3x = 0
b + 0 = a + x + -3x
b = a + x + -3x

Combine like terms: x + -3x = -2x
b = a + -2x

Simplifying
b = a + -2x

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