-(a+b)+(3a-b)=

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Solution for -(a+b)+(3a-b)= equation:


Simplifying
-1(a + b) + (3a + -1b) = 0
(a * -1 + b * -1) + (3a + -1b) = 0
(-1a + -1b) + (3a + -1b) = 0

Remove parenthesis around (3a + -1b)
-1a + -1b + 3a + -1b = 0

Reorder the terms:
-1a + 3a + -1b + -1b = 0

Combine like terms: -1a + 3a = 2a
2a + -1b + -1b = 0

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

Solving
2a + -2b = 0

Solving for variable 'a'.

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

Add '2b' to each side of the equation.
2a + -2b + 2b = 0 + 2b

Combine like terms: -2b + 2b = 0
2a + 0 = 0 + 2b
2a = 0 + 2b
Remove the zero:
2a = 2b

Divide each side by '2'.
a = b

Simplifying
a = b

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