X+(X-9)=47.5

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Solution for X+(X-9)=47.5 equation:


Simplifying
X + (X + -9) = 47.5

Reorder the terms:
X + (-9 + X) = 47.5

Remove parenthesis around (-9 + X)
X + -9 + X = 47.5

Reorder the terms:
-9 + X + X = 47.5

Combine like terms: X + X = 2X
-9 + 2X = 47.5

Solving
-9 + 2X = 47.5

Solving for variable 'X'.

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

Add '9' to each side of the equation.
-9 + 9 + 2X = 47.5 + 9

Combine like terms: -9 + 9 = 0
0 + 2X = 47.5 + 9
2X = 47.5 + 9

Combine like terms: 47.5 + 9 = 56.5
2X = 56.5

Divide each side by '2'.
X = 28.25

Simplifying
X = 28.25

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