x+18+3x=-17-3x-21

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Solution for x+18+3x=-17-3x-21 equation:


Simplifying
x + 18 + 3x = -17 + -3x + -21

Reorder the terms:
18 + x + 3x = -17 + -3x + -21

Combine like terms: x + 3x = 4x
18 + 4x = -17 + -3x + -21

Reorder the terms:
18 + 4x = -17 + -21 + -3x

Combine like terms: -17 + -21 = -38
18 + 4x = -38 + -3x

Solving
18 + 4x = -38 + -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 = -38 + -3x + 3x

Combine like terms: 4x + 3x = 7x
18 + 7x = -38 + -3x + 3x

Combine like terms: -3x + 3x = 0
18 + 7x = -38 + 0
18 + 7x = -38

Add '-18' to each side of the equation.
18 + -18 + 7x = -38 + -18

Combine like terms: 18 + -18 = 0
0 + 7x = -38 + -18
7x = -38 + -18

Combine like terms: -38 + -18 = -56
7x = -56

Divide each side by '7'.
x = -8

Simplifying
x = -8

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