3x+7x=84

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Solution for 3x+7x=84 equation: 


Simplifying
3x + 7x = 84

Combine like terms: 3x + 7x = 10x
10x = 84

Solving
10x = 84

Solving for variable 'x'.

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

Divide each side by '10'.
x = 8.4

Simplifying
x = 8.4

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