3x+4x=-15

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Solution for 3x+4x=-15 equation: 


Simplifying
3x + 4x = -15

Combine like terms: 3x + 4x = 7x
7x = -15

Solving
7x = -15

Solving for variable 'x'.

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

Divide each side by '7'.
x = -2.142857143

Simplifying
x = -2.142857143

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