5x-21=9x-1

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Solution for 5x-21=9x-1 equation:


Simplifying
5x + -21 = 9x + -1

Reorder the terms:
-21 + 5x = 9x + -1

Reorder the terms:
-21 + 5x = -1 + 9x

Solving
-21 + 5x = -1 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-21 + 5x + -9x = -1 + 9x + -9x

Combine like terms: 5x + -9x = -4x
-21 + -4x = -1 + 9x + -9x

Combine like terms: 9x + -9x = 0
-21 + -4x = -1 + 0
-21 + -4x = -1

Add '21' to each side of the equation.
-21 + 21 + -4x = -1 + 21

Combine like terms: -21 + 21 = 0
0 + -4x = -1 + 21
-4x = -1 + 21

Combine like terms: -1 + 21 = 20
-4x = 20

Divide each side by '-4'.
x = -5

Simplifying
x = -5

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