a+b+c=a-b-c

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Solution for a+b+c=a-b-c equation:


Simplifying
a + b + c = a + -1b + -1c

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

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

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

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

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

Solving
b + c = -1b + -1c

Solving for variable 'b'.

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

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

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

Combine like terms: -1b + b = 0
2b + c = 0 + -1c
2b + c = -1c

Add '-1c' to each side of the equation.
2b + c + -1c = -1c + -1c

Combine like terms: c + -1c = 0
2b + 0 = -1c + -1c
2b = -1c + -1c

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

Divide each side by '2'.
b = -1c

Simplifying
b = -1c

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