49=7(1+4x)-7x

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Solution for 49=7(1+4x)-7x equation: 



49=7(1+4x)-7x

We move all terms to the left:

49-(7(1+4x)-7x)=0

We add all the numbers together, and all the variables

-(7(4x+1)-7x)+49=0



We calculate terms in parentheses: -(7(4x+1)-7x), so:

7(4x+1)-7x

We add all the numbers together, and all the variables

-7x+7(4x+1)

We multiply parentheses

-7x+28x+7

We add all the numbers together, and all the variables

21x+7

Back to the equation:

-(21x+7)



We get rid of parentheses

-21x-7+49=0

We add all the numbers together, and all the variables

-21x+42=0

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

-21x=-42

x=-42/-21

x=+2

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