X+4x+(2x+15)+(3x+15)=31

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Solution for X+4x+(2x+15)+(3x+15)=31 equation:


Simplifying
X + 4x + (2x + 15) + (3x + 15) = 31

Reorder the terms:
X + 4x + (15 + 2x) + (3x + 15) = 31

Remove parenthesis around (15 + 2x)
X + 4x + 15 + 2x + (3x + 15) = 31

Reorder the terms:
X + 4x + 15 + 2x + (15 + 3x) = 31

Remove parenthesis around (15 + 3x)
X + 4x + 15 + 2x + 15 + 3x = 31

Reorder the terms:
15 + 15 + X + 4x + 2x + 3x = 31

Combine like terms: 15 + 15 = 30
30 + X + 4x + 2x + 3x = 31

Combine like terms: 4x + 2x = 6x
30 + X + 6x + 3x = 31

Combine like terms: 6x + 3x = 9x
30 + X + 9x = 31

Solving
30 + X + 9x = 31

Solving for variable 'X'.

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

Add '-30' to each side of the equation.
30 + X + -30 + 9x = 31 + -30

Reorder the terms:
30 + -30 + X + 9x = 31 + -30

Combine like terms: 30 + -30 = 0
0 + X + 9x = 31 + -30
X + 9x = 31 + -30

Combine like terms: 31 + -30 = 1
X + 9x = 1

Add '-9x' to each side of the equation.
X + 9x + -9x = 1 + -9x

Combine like terms: 9x + -9x = 0
X + 0 = 1 + -9x
X = 1 + -9x

Simplifying
X = 1 + -9x

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