7(1x+3)-21=49

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Solution for 7(1x+3)-21=49 equation: 



7(1x+3)-21=49

We move all terms to the left:

7(1x+3)-21-(49)=0

We add all the numbers together, and all the variables

7(x+3)-21-49=0

We add all the numbers together, and all the variables

7(x+3)-70=0

We multiply parentheses

7x+21-70=0

We add all the numbers together, and all the variables

7x-49=0

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

7x=49

x=49/7

x=7

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