3x-7=21+5

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Solution for 3x-7=21+5 equation: 



3x-7=21+5

We move all terms to the left:

3x-7-(21+5)=0

We add all the numbers together, and all the variables

3x-7-26=0

We add all the numbers together, and all the variables

3x-33=0

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

3x=33

x=33/3

x=11

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