33=3x+21

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Solution for 33=3x+21 equation:


Simplifying
33 = 3x + 21

Reorder the terms:
33 = 21 + 3x

Solving
33 = 21 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
33 + -3x = 21 + 3x + -3x

Combine like terms: 3x + -3x = 0
33 + -3x = 21 + 0
33 + -3x = 21

Add '-33' to each side of the equation.
33 + -33 + -3x = 21 + -33

Combine like terms: 33 + -33 = 0
0 + -3x = 21 + -33
-3x = 21 + -33

Combine like terms: 21 + -33 = -12
-3x = -12

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

Simplifying
x = 4

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