x+3x+15=-5x

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Solution for x+3x+15=-5x equation:


Simplifying
x + 3x + 15 = -5x

Reorder the terms:
15 + x + 3x = -5x

Combine like terms: x + 3x = 4x
15 + 4x = -5x

Solving
15 + 4x = -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
15 + 4x + 5x = -5x + 5x

Combine like terms: 4x + 5x = 9x
15 + 9x = -5x + 5x

Combine like terms: -5x + 5x = 0
15 + 9x = 0

Add '-15' to each side of the equation.
15 + -15 + 9x = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 9x = 0 + -15
9x = 0 + -15

Combine like terms: 0 + -15 = -15
9x = -15

Divide each side by '9'.
x = -1.666666667

Simplifying
x = -1.666666667

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