-7(9-x)=42

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Solution for -7(9-x)=42 equation: 



-7(9-x)=42

We move all terms to the left:

-7(9-x)-(42)=0

We add all the numbers together, and all the variables

-7(-1x+9)-42=0

We multiply parentheses

7x-63-42=0

We add all the numbers together, and all the variables

7x-105=0

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

7x=105

x=105/7

x=15

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