7x-4=-9x

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Solution for 7x-4=-9x equation: 



7x-4=-9x

We move all terms to the left:

7x-4-(-9x)=0

We get rid of parentheses

7x+9x-4=0

We add all the numbers together, and all the variables

16x-4=0

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

16x=4

x=4/16

x=1/4

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