7(4+4x)=280

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Solution for 7(4+4x)=280 equation: 



7(4+4x)=280

We move all terms to the left:

7(4+4x)-(280)=0

We add all the numbers together, and all the variables

7(4x+4)-280=0

We multiply parentheses

28x+28-280=0

We add all the numbers together, and all the variables

28x-252=0

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

28x=252

x=252/28

x=9

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