(X)+(3x+4)+(x-9)=180

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Solution for (X)+(3x+4)+(x-9)=180 equation:


Simplifying
(X) + (3x + 4) + (x + -9) = 180
X + (3x + 4) + (x + -9) = 180

Reorder the terms:
X + (4 + 3x) + (x + -9) = 180

Remove parenthesis around (4 + 3x)
X + 4 + 3x + (x + -9) = 180

Reorder the terms:
X + 4 + 3x + (-9 + x) = 180

Remove parenthesis around (-9 + x)
X + 4 + 3x + -9 + x = 180

Reorder the terms:
4 + -9 + X + 3x + x = 180

Combine like terms: 4 + -9 = -5
-5 + X + 3x + x = 180

Combine like terms: 3x + x = 4x
-5 + X + 4x = 180

Solving
-5 + X + 4x = 180

Solving for variable 'X'.

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

Add '5' to each side of the equation.
-5 + X + 5 + 4x = 180 + 5

Reorder the terms:
-5 + 5 + X + 4x = 180 + 5

Combine like terms: -5 + 5 = 0
0 + X + 4x = 180 + 5
X + 4x = 180 + 5

Combine like terms: 180 + 5 = 185
X + 4x = 185

Add '-4x' to each side of the equation.
X + 4x + -4x = 185 + -4x

Combine like terms: 4x + -4x = 0
X + 0 = 185 + -4x
X = 185 + -4x

Simplifying
X = 185 + -4x

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