7(3x-20)=49

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Solution for 7(3x-20)=49 equation: 



7(3x-20)=49

We move all terms to the left:

7(3x-20)-(49)=0

We multiply parentheses

21x-140-49=0

We add all the numbers together, and all the variables

21x-189=0

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

21x=189

x=189/21

x=9

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