7(10-x)=42

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Solution for 7(10-x)=42 equation: 



7(10-x)=42

We move all terms to the left:

7(10-x)-(42)=0

We add all the numbers together, and all the variables

7(-1x+10)-42=0

We multiply parentheses

-7x+70-42=0

We add all the numbers together, and all the variables

-7x+28=0

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

-7x=-28

x=-28/-7

x=+4

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