altergMiabeau altergMiabeau

23-11-2016
Mathematics

contestada

Simplify -4x - x.

-5x
-4x
-3x

Respuesta :

ItsUmbreon ItsUmbreon

23-11-2016

When you have variables that share a base and power (in this case they are both x to the first power) you are allowed to add and subtract the coefficients as long as you keep the same base and power.

-4x - x = -5x

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