x+20+3x=-11-3x-18

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Solution for x+20+3x=-11-3x-18 equation: 


Simplifying
x + 20 + 3x = -11 + -3x + -18

Reorder the terms:
20 + x + 3x = -11 + -3x + -18

Combine like terms: x + 3x = 4x
20 + 4x = -11 + -3x + -18

Reorder the terms:
20 + 4x = -11 + -18 + -3x

Combine like terms: -11 + -18 = -29
20 + 4x = -29 + -3x

Solving
20 + 4x = -29 + -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.
20 + 4x + 3x = -29 + -3x + 3x

Combine like terms: 4x + 3x = 7x
20 + 7x = -29 + -3x + 3x

Combine like terms: -3x + 3x = 0
20 + 7x = -29 + 0
20 + 7x = -29

Add '-20' to each side of the equation.
20 + -20 + 7x = -29 + -20

Combine like terms: 20 + -20 = 0
0 + 7x = -29 + -20
7x = -29 + -20

Combine like terms: -29 + -20 = -49
7x = -49

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

Simplifying
x = -7

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