x-5x-55=21

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Solution for x-5x-55=21 equation:


Simplifying
x + -5x + -55 = 21

Reorder the terms:
-55 + x + -5x = 21

Combine like terms: x + -5x = -4x
-55 + -4x = 21

Solving
-55 + -4x = 21

Solving for variable 'x'.

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

Add '55' to each side of the equation.
-55 + 55 + -4x = 21 + 55

Combine like terms: -55 + 55 = 0
0 + -4x = 21 + 55
-4x = 21 + 55

Combine like terms: 21 + 55 = 76
-4x = 76

Divide each side by '-4'.
x = -19

Simplifying
x = -19

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