3+6x=78

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Solution for 3+6x=78 equation: 


Simplifying
3 + 6x = 78

Solving
3 + 6x = 78

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 6x = 78 + -3

Combine like terms: 3 + -3 = 0
0 + 6x = 78 + -3
6x = 78 + -3

Combine like terms: 78 + -3 = 75
6x = 75

Divide each side by '6'.
x = 12.5

Simplifying
x = 12.5

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