3+9x=7+8x

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Solution for 3+9x=7+8x equation: 



3+9x=7+8x

We move all terms to the left:

3+9x-(7+8x)=0

We add all the numbers together, and all the variables

9x-(8x+7)+3=0

We get rid of parentheses

9x-8x-7+3=0

We add all the numbers together, and all the variables

x-4=0

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

x=4

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