x+21+4x=-31-4x-38

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Solution for x+21+4x=-31-4x-38 equation: 


Simplifying
x + 21 + 4x = -31 + -4x + -38

Reorder the terms:
21 + x + 4x = -31 + -4x + -38

Combine like terms: x + 4x = 5x
21 + 5x = -31 + -4x + -38

Reorder the terms:
21 + 5x = -31 + -38 + -4x

Combine like terms: -31 + -38 = -69
21 + 5x = -69 + -4x

Solving
21 + 5x = -69 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
21 + 5x + 4x = -69 + -4x + 4x

Combine like terms: 5x + 4x = 9x
21 + 9x = -69 + -4x + 4x

Combine like terms: -4x + 4x = 0
21 + 9x = -69 + 0
21 + 9x = -69

Add '-21' to each side of the equation.
21 + -21 + 9x = -69 + -21

Combine like terms: 21 + -21 = 0
0 + 9x = -69 + -21
9x = -69 + -21

Combine like terms: -69 + -21 = -90
9x = -90

Divide each side by '9'.
x = -10

Simplifying
x = -10

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