x+x+3x+(x-15)=

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Solution for x+x+3x+(x-15)= equation:


Simplifying
x + x + 3x + (x + -15) = 0

Reorder the terms:
x + x + 3x + (-15 + x) = 0

Remove parenthesis around (-15 + x)
x + x + 3x + -15 + x = 0

Reorder the terms:
-15 + x + x + 3x + x = 0

Combine like terms: x + x = 2x
-15 + 2x + 3x + x = 0

Combine like terms: 2x + 3x = 5x
-15 + 5x + x = 0

Combine like terms: 5x + x = 6x
-15 + 6x = 0

Solving
-15 + 6x = 0

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 6x = 0 + 15

Combine like terms: -15 + 15 = 0
0 + 6x = 0 + 15
6x = 0 + 15

Combine like terms: 0 + 15 = 15
6x = 15

Divide each side by '6'.
x = 2.5

Simplifying
x = 2.5

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