19-4x=21

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Solution for 19-4x=21 equation: 


Simplifying
19 + -4x = 21

Solving
19 + -4x = 21

Solving for variable 'x'.

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

Add '-19' to each side of the equation.
19 + -19 + -4x = 21 + -19

Combine like terms: 19 + -19 = 0
0 + -4x = 21 + -19
-4x = 21 + -19

Combine like terms: 21 + -19 = 2
-4x = 2

Divide each side by '-4'.
x = -0.5

Simplifying
x = -0.5

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