X+7+21=x+2-5

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Solution for X+7+21=x+2-5 equation:


Simplifying
X + 7 + 21 = x + 2 + -5

Reorder the terms:
7 + 21 + X = x + 2 + -5

Combine like terms: 7 + 21 = 28
28 + X = x + 2 + -5

Reorder the terms:
28 + X = 2 + -5 + x

Combine like terms: 2 + -5 = -3
28 + X = -3 + x

Solving
28 + X = -3 + x

Solving for variable 'X'.

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

Add '-28' to each side of the equation.
28 + -28 + X = -3 + -28 + x

Combine like terms: 28 + -28 = 0
0 + X = -3 + -28 + x
X = -3 + -28 + x

Combine like terms: -3 + -28 = -31
X = -31 + x

Simplifying
X = -31 + x

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