21-4x=33

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Solution for 21-4x=33 equation: 


Simplifying
21 + -4x = 33

Solving
21 + -4x = 33

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + -4x = 33 + -21

Combine like terms: 21 + -21 = 0
0 + -4x = 33 + -21
-4x = 33 + -21

Combine like terms: 33 + -21 = 12
-4x = 12

Divide each side by '-4'.
x = -3

Simplifying
x = -3

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