5x+7x=78

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Solution for 5x+7x=78 equation: 


Simplifying
5x + 7x = 78

Combine like terms: 5x + 7x = 12x
12x = 78

Solving
12x = 78

Solving for variable 'x'.

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

Divide each side by '12'.
x = 6.5

Simplifying
x = 6.5

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