7(3x-4)=100

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Solution for 7(3x-4)=100 equation: 



7(3x-4)=100

We move all terms to the left:

7(3x-4)-(100)=0

We multiply parentheses

21x-28-100=0

We add all the numbers together, and all the variables

21x-128=0

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

21x=128

x=128/21

x=6+2/21

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