7a-(b+a+b)-(3a-b+6a)+b=

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Solution for 7a-(b+a+b)-(3a-b+6a)+b= equation:


Simplifying
7a + -1(b + a + b) + -1(3a + -1b + 6a) + b = 0

Reorder the terms:
7a + -1(a + b + b) + -1(3a + -1b + 6a) + b = 0

Combine like terms: b + b = 2b
7a + -1(a + 2b) + -1(3a + -1b + 6a) + b = 0
7a + (a * -1 + 2b * -1) + -1(3a + -1b + 6a) + b = 0
7a + (-1a + -2b) + -1(3a + -1b + 6a) + b = 0

Reorder the terms:
7a + -1a + -2b + -1(3a + 6a + -1b) + b = 0

Combine like terms: 3a + 6a = 9a
7a + -1a + -2b + -1(9a + -1b) + b = 0
7a + -1a + -2b + (9a * -1 + -1b * -1) + b = 0
7a + -1a + -2b + (-9a + 1b) + b = 0

Reorder the terms:
7a + -1a + -9a + -2b + 1b + b = 0

Combine like terms: 7a + -1a = 6a
6a + -9a + -2b + 1b + b = 0

Combine like terms: 6a + -9a = -3a
-3a + -2b + 1b + b = 0

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

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

Solving
-3a = 0

Solving for variable 'a'.

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

Divide each side by '-3'.
a = 0

Simplifying
a = 0

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