x-(20-x)=4

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Solution for x-(20-x)=4 equation:


Simplifying
x + -1(20 + -1x) = 4
x + (20 * -1 + -1x * -1) = 4
x + (-20 + 1x) = 4

Reorder the terms:
-20 + x + 1x = 4

Combine like terms: x + 1x = 2x
-20 + 2x = 4

Solving
-20 + 2x = 4

Solving for variable 'x'.

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

Add '20' to each side of the equation.
-20 + 20 + 2x = 4 + 20

Combine like terms: -20 + 20 = 0
0 + 2x = 4 + 20
2x = 4 + 20

Combine like terms: 4 + 20 = 24
2x = 24

Divide each side by '2'.
x = 12

Simplifying
x = 12

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