x+18+3x=-9-3x-15

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Solution for x+18+3x=-9-3x-15 equation:


Simplifying
x + 18 + 3x = -9 + -3x + -15

Reorder the terms:
18 + x + 3x = -9 + -3x + -15

Combine like terms: x + 3x = 4x
18 + 4x = -9 + -3x + -15

Reorder the terms:
18 + 4x = -9 + -15 + -3x

Combine like terms: -9 + -15 = -24
18 + 4x = -24 + -3x

Solving
18 + 4x = -24 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
18 + 4x + 3x = -24 + -3x + 3x

Combine like terms: 4x + 3x = 7x
18 + 7x = -24 + -3x + 3x

Combine like terms: -3x + 3x = 0
18 + 7x = -24 + 0
18 + 7x = -24

Add '-18' to each side of the equation.
18 + -18 + 7x = -24 + -18

Combine like terms: 18 + -18 = 0
0 + 7x = -24 + -18
7x = -24 + -18

Combine like terms: -24 + -18 = -42
7x = -42

Divide each side by '7'.
x = -6

Simplifying
x = -6

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