[x-8]=13

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Solution for [x-8]=13 equation:


Simplifying
[x + -8] = 13

Reorder the terms:
[-8 + x] = 13

Remove brackets around [-8 + x]
-8 + x = 13

Solving
-8 + x = 13

Solving for variable 'x'.

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

Add '8' to each side of the equation.
-8 + 8 + x = 13 + 8

Combine like terms: -8 + 8 = 0
0 + x = 13 + 8
x = 13 + 8

Combine like terms: 13 + 8 = 21
x = 21

Simplifying
x = 21

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