1+2+1+2+x+(12-x)+(9-x)=

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Solution for 1+2+1+2+x+(12-x)+(9-x)= equation:


Simplifying
1 + 2 + 1 + 2 + x + (12 + -1x) + (9 + -1x) = 0

Remove parenthesis around (12 + -1x)
1 + 2 + 1 + 2 + x + 12 + -1x + (9 + -1x) = 0

Remove parenthesis around (9 + -1x)
1 + 2 + 1 + 2 + x + 12 + -1x + 9 + -1x = 0

Reorder the terms:
1 + 2 + 1 + 2 + 12 + 9 + x + -1x + -1x = 0

Combine like terms: 1 + 2 = 3
3 + 1 + 2 + 12 + 9 + x + -1x + -1x = 0

Combine like terms: 3 + 1 = 4
4 + 2 + 12 + 9 + x + -1x + -1x = 0

Combine like terms: 4 + 2 = 6
6 + 12 + 9 + x + -1x + -1x = 0

Combine like terms: 6 + 12 = 18
18 + 9 + x + -1x + -1x = 0

Combine like terms: 18 + 9 = 27
27 + x + -1x + -1x = 0

Combine like terms: x + -1x = 0
27 + 0 + -1x = 0
27 + -1x = 0

Solving
27 + -1x = 0

Solving for variable 'x'.

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

Add '-27' to each side of the equation.
27 + -27 + -1x = 0 + -27

Combine like terms: 27 + -27 = 0
0 + -1x = 0 + -27
-1x = 0 + -27

Combine like terms: 0 + -27 = -27
-1x = -27

Divide each side by '-1'.
x = 27

Simplifying
x = 27

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