7(10-x)=77

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Solution for 7(10-x)=77 equation: 



7(10-x)=77

We move all terms to the left:

7(10-x)-(77)=0

We add all the numbers together, and all the variables

7(-1x+10)-77=0

We multiply parentheses

-7x+70-77=0

We add all the numbers together, and all the variables

-7x-7=0

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

-7x=7

x=7/-7

x=-1

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