12-(x-5)=20

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Solution for 12-(x-5)=20 equation:


Simplifying
12 + -1(x + -5) = 20

Reorder the terms:
12 + -1(-5 + x) = 20
12 + (-5 * -1 + x * -1) = 20
12 + (5 + -1x) = 20

Combine like terms: 12 + 5 = 17
17 + -1x = 20

Solving
17 + -1x = 20

Solving for variable 'x'.

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

Add '-17' to each side of the equation.
17 + -17 + -1x = 20 + -17

Combine like terms: 17 + -17 = 0
0 + -1x = 20 + -17
-1x = 20 + -17

Combine like terms: 20 + -17 = 3
-1x = 3

Divide each side by '-1'.
x = -3

Simplifying
x = -3

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