-3(5x+1)=42

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Solution for -3(5x+1)=42 equation: 



-3(5x+1)=42

We move all terms to the left:

-3(5x+1)-(42)=0

We multiply parentheses

-15x-3-42=0

We add all the numbers together, and all the variables

-15x-45=0

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

-15x=45

x=45/-15

x=-3

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