x+21+3x=-16-3x-19

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Solution for x+21+3x=-16-3x-19 equation: 


Simplifying
x + 21 + 3x = -16 + -3x + -19

Reorder the terms:
21 + x + 3x = -16 + -3x + -19

Combine like terms: x + 3x = 4x
21 + 4x = -16 + -3x + -19

Reorder the terms:
21 + 4x = -16 + -19 + -3x

Combine like terms: -16 + -19 = -35
21 + 4x = -35 + -3x

Solving
21 + 4x = -35 + -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.
21 + 4x + 3x = -35 + -3x + 3x

Combine like terms: 4x + 3x = 7x
21 + 7x = -35 + -3x + 3x

Combine like terms: -3x + 3x = 0
21 + 7x = -35 + 0
21 + 7x = -35

Add '-21' to each side of the equation.
21 + -21 + 7x = -35 + -21

Combine like terms: 21 + -21 = 0
0 + 7x = -35 + -21
7x = -35 + -21

Combine like terms: -35 + -21 = -56
7x = -56

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

Simplifying
x = -8

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