7x+4=9-8x

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Solution for 7x+4=9-8x equation: 



7x+4=9-8x

We move all terms to the left:

7x+4-(9-8x)=0

We add all the numbers together, and all the variables

7x-(-8x+9)+4=0

We get rid of parentheses

7x+8x-9+4=0

We add all the numbers together, and all the variables

15x-5=0

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

15x=5

x=5/15

x=1/3

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