-3x+5x+4x=-21

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Solution for -3x+5x+4x=-21 equation: 


Simplifying
-3x + 5x + 4x = -21

Combine like terms: -3x + 5x = 2x
2x + 4x = -21

Combine like terms: 2x + 4x = 6x
6x = -21

Solving
6x = -21

Solving for variable 'x'.

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

Divide each side by '6'.
x = -3.5

Simplifying
x = -3.5

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