7x+3=-42-2x

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Solution for 7x+3=-42-2x equation: 



7x+3=-42-2x

We move all terms to the left:

7x+3-(-42-2x)=0

We add all the numbers together, and all the variables

7x-(-2x-42)+3=0

We get rid of parentheses

7x+2x+42+3=0

We add all the numbers together, and all the variables

9x+45=0

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

9x=-45

x=-45/9

x=-5

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