07-09-2018
Mathematics

contestada

If x= y, then 2x-6=2y-6.

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BiologiaMagister BiologiaMagister

07-09-2018

If x is the same thing as y, we can just change x to y or vice versa:

2x - 6 = 2x - 6

2x = 2x - 6 + 6

2x = 2x - 0

2x -2x = 0

0 = 0

Hope it helped,

BioTeacher101

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