X - 3 = 2x - 3 - x is it true

Yes it is true left side is the most simplified on the right 2x-x is x-3

x-3=x-3

True

Step-by-step explanation:

X-3 = 2x - 3 - x

x - 3 = 2x - x - 3

x - 3 = x - 3

a mantle plume is an upwelling of abnormally hot rock within the earth's mantle. as the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of volcanic centers known as hotspots and probably also to have caused flood basalts.

step-by-step explanation:

the one where 1 and 2 are directly across from each other.  

see image