x+3(6+x)=-6

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Solution for x+3(6+x)=-6 equation: 


Simplifying
x + 3(6 + x) = -6
x + (6 * 3 + x * 3) = -6
x + (18 + 3x) = -6

Reorder the terms:
18 + x + 3x = -6

Combine like terms: x + 3x = 4x
18 + 4x = -6

Solving
18 + 4x = -6

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 4x = -6 + -18

Combine like terms: 18 + -18 = 0
0 + 4x = -6 + -18
4x = -6 + -18

Combine like terms: -6 + -18 = -24
4x = -24

Divide each side by '4'.
x = -6

Simplifying
x = -6

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