X+5+(x-1)=12

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Solution for X+5+(x-1)=12 equation:


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

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

Remove parenthesis around (-1 + x)
X + 5 + -1 + x = 12

Reorder the terms:
5 + -1 + X + x = 12

Combine like terms: 5 + -1 = 4
4 + X + x = 12

Solving
4 + X + x = 12

Solving for variable 'X'.

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

Add '-4' to each side of the equation.
4 + X + -4 + x = 12 + -4

Reorder the terms:
4 + -4 + X + x = 12 + -4

Combine like terms: 4 + -4 = 0
0 + X + x = 12 + -4
X + x = 12 + -4

Combine like terms: 12 + -4 = 8
X + x = 8

Add '-1x' to each side of the equation.
X + x + -1x = 8 + -1x

Combine like terms: x + -1x = 0
X + 0 = 8 + -1x
X = 8 + -1x

Simplifying
X = 8 + -1x

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