1+2-3+4-a+6-7+8-9+(2a)=

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Solution for 1+2-3+4-a+6-7+8-9+(2a)= equation:


Simplifying
1 + 2 + -3 + 4 + -1a + 6 + -7 + 8 + -9 + (2a) = 0

Reorder the terms:
1 + 2 + -3 + 4 + 6 + -7 + 8 + -9 + -1a + (2a) = 0

Combine like terms: 1 + 2 = 3
3 + -3 + 4 + 6 + -7 + 8 + -9 + -1a + (2a) = 0

Combine like terms: 3 + -3 = 0
0 + 4 + 6 + -7 + 8 + -9 + -1a + (2a) = 0
4 + 6 + -7 + 8 + -9 + -1a + (2a) = 0

Combine like terms: 4 + 6 = 10
10 + -7 + 8 + -9 + -1a + (2a) = 0

Combine like terms: 10 + -7 = 3
3 + 8 + -9 + -1a + (2a) = 0

Combine like terms: 3 + 8 = 11
11 + -9 + -1a + (2a) = 0

Combine like terms: 11 + -9 = 2
2 + -1a + (2a) = 0

Combine like terms: -1a + (2a) = 1a
2 + 1a = 0

Solving
2 + 1a = 0

Solving for variable 'a'.

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

Add '-2' to each side of the equation.
2 + -2 + 1a = 0 + -2

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

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

Divide each side by '1'.
a = -2

Simplifying
a = -2

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