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

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


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

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

Combine like terms: -5 + -4 = -9
-2x = -9 + 21

Combine like terms: -9 + 21 = 12
-2x = 12

Solving
-2x = 12

Solving for variable 'x'.

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

Divide each side by '-2'.
x = -6

Simplifying
x = -6

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