(x-9)+2x+x=51

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Solution for (x-9)+2x+x=51 equation:


Simplifying
(x + -9) + 2x + x = 51

Reorder the terms:
(-9 + x) + 2x + x = 51

Remove parenthesis around (-9 + x)
-9 + x + 2x + x = 51

Combine like terms: x + 2x = 3x
-9 + 3x + x = 51

Combine like terms: 3x + x = 4x
-9 + 4x = 51

Solving
-9 + 4x = 51

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 + 4x = 51 + 9

Combine like terms: -9 + 9 = 0
0 + 4x = 51 + 9
4x = 51 + 9

Combine like terms: 51 + 9 = 60
4x = 60

Divide each side by '4'.
x = 15

Simplifying
x = 15

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