7x+4=8x+9

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



7x+4=8x+9

We move all terms to the left:

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

We get rid of parentheses

7x-8x-9+4=0

We add all the numbers together, and all the variables

-1x-5=0

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

-x=5

x=5/-1

x=-5

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