2x-5+4x=21

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Solution for 2x-5+4x=21 equation: 



2x-5+4x=21

We move all terms to the left:

2x-5+4x-(21)=0

We add all the numbers together, and all the variables

6x-26=0

We move all terms containing x to the left, all other terms to the right

6x=26

x=26/6

x=4+1/3

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