(20-x)+(10-x)+x=

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Solution for (20-x)+(10-x)+x= equation:


Simplifying
(20 + -1x) + (10 + -1x) + x = 0

Remove parenthesis around (20 + -1x)
20 + -1x + (10 + -1x) + x = 0

Remove parenthesis around (10 + -1x)
20 + -1x + 10 + -1x + x = 0

Reorder the terms:
20 + 10 + -1x + -1x + x = 0

Combine like terms: 20 + 10 = 30
30 + -1x + -1x + x = 0

Combine like terms: -1x + -1x = -2x
30 + -2x + x = 0

Combine like terms: -2x + x = -1x
30 + -1x = 0

Solving
30 + -1x = 0

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + -1x = 0 + -30

Combine like terms: 30 + -30 = 0
0 + -1x = 0 + -30
-1x = 0 + -30

Combine like terms: 0 + -30 = -30
-1x = -30

Divide each side by '-1'.
x = 30

Simplifying
x = 30

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