7(4x+9)=343

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Solution for 7(4x+9)=343 equation: 



7(4x+9)=343

We move all terms to the left:

7(4x+9)-(343)=0

We multiply parentheses

28x+63-343=0

We add all the numbers together, and all the variables

28x-280=0

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

28x=280

x=280/28

x=10

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