(X+2)-(x-1)=12.4

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Solution for (X+2)-(x-1)=12.4 equation:


Simplifying
(X + 2) + -1(x + -1) = 12.4

Reorder the terms:
(2 + X) + -1(x + -1) = 12.4

Remove parenthesis around (2 + X)
2 + X + -1(x + -1) = 12.4

Reorder the terms:
2 + X + -1(-1 + x) = 12.4
2 + X + (-1 * -1 + x * -1) = 12.4
2 + X + (1 + -1x) = 12.4

Reorder the terms:
2 + 1 + X + -1x = 12.4

Combine like terms: 2 + 1 = 3
3 + X + -1x = 12.4

Solving
3 + X + -1x = 12.4

Solving for variable 'X'.

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

Add '-3' to each side of the equation.
3 + X + -3 + -1x = 12.4 + -3

Reorder the terms:
3 + -3 + X + -1x = 12.4 + -3

Combine like terms: 3 + -3 = 0
0 + X + -1x = 12.4 + -3
X + -1x = 12.4 + -3

Combine like terms: 12.4 + -3 = 9.4
X + -1x = 9.4

Add 'x' to each side of the equation.
X + -1x + x = 9.4 + x

Combine like terms: -1x + x = 0
X + 0 = 9.4 + x
X = 9.4 + x

Simplifying
X = 9.4 + x

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