3x-1=12.5

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Solution for 3x-1=12.5 equation: 


Simplifying
3x + -1 = 12.5

Reorder the terms:
-1 + 3x = 12.5

Solving
-1 + 3x = 12.5

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + 3x = 12.5 + 1

Combine like terms: -1 + 1 = 0
0 + 3x = 12.5 + 1
3x = 12.5 + 1

Combine like terms: 12.5 + 1 = 13.5
3x = 13.5

Divide each side by '3'.
x = 4.5

Simplifying
x = 4.5

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