51-3x=30

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Solution for 51-3x=30 equation: 


Simplifying
51 + -3x = 30

Solving
51 + -3x = 30

Solving for variable 'x'.

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

Add '-51' to each side of the equation.
51 + -51 + -3x = 30 + -51

Combine like terms: 51 + -51 = 0
0 + -3x = 30 + -51
-3x = 30 + -51

Combine like terms: 30 + -51 = -21
-3x = -21

Divide each side by '-3'.
x = 7

Simplifying
x = 7

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