7(4-7x)+3=129

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Solution for 7(4-7x)+3=129 equation: 



7(4-7x)+3=129

We move all terms to the left:

7(4-7x)+3-(129)=0

We add all the numbers together, and all the variables

7(-7x+4)+3-129=0

We add all the numbers together, and all the variables

7(-7x+4)-126=0

We multiply parentheses

-49x+28-126=0

We add all the numbers together, and all the variables

-49x-98=0

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

-49x=98

x=98/-49

x=-2

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