asked 44.5k views
1 vote
Simplify -4x - x.

-5x
-4x
-3x

1 Answer

2 votes
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
answered
User Kyle Krzeski
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