20=(30-x)+(x-10)

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Solution for 20=(30-x)+(x-10) equation:


Simplifying
20 = (30 + -1x) + (x + -10)

Remove parenthesis around (30 + -1x)
20 = 30 + -1x + (x + -10)

Reorder the terms:
20 = 30 + -1x + (-10 + x)

Remove parenthesis around (-10 + x)
20 = 30 + -1x + -10 + x

Reorder the terms:
20 = 30 + -10 + -1x + x

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

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

Add '-20' to each side of the equation.
20 + -20 = 20 + -20

Combine like terms: 20 + -20 = 0
0 = 20 + -20

Combine like terms: 20 + -20 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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