3x+10x+12x=400

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Solution for 3x+10x+12x=400 equation: 


Simplifying
3x + 10x + 12x = 400

Combine like terms: 3x + 10x = 13x
13x + 12x = 400

Combine like terms: 13x + 12x = 25x
25x = 400

Solving
25x = 400

Solving for variable 'x'.

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

Divide each side by '25'.
x = 16

Simplifying
x = 16

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