12.5+3x=20

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Solution for 12.5+3x=20 equation: 


Simplifying
12.5 + 3x = 20

Solving
12.5 + 3x = 20

Solving for variable 'x'.

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

Add '-12.5' to each side of the equation.
12.5 + -12.5 + 3x = 20 + -12.5

Combine like terms: 12.5 + -12.5 = 0.0
0.0 + 3x = 20 + -12.5
3x = 20 + -12.5

Combine like terms: 20 + -12.5 = 7.5
3x = 7.5

Divide each side by '3'.
x = 2.5

Simplifying
x = 2.5

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