3x+5x+7x=50

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Solution for 3x+5x+7x=50 equation: 


Simplifying
3x + 5x + 7x = 50

Combine like terms: 3x + 5x = 8x
8x + 7x = 50

Combine like terms: 8x + 7x = 15x
15x = 50

Solving
15x = 50

Solving for variable 'x'.

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

Divide each side by '15'.
x = 3.333333333

Simplifying
x = 3.333333333

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