x+8x=7x-16

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Solution for x+8x=7x-16 equation: 



x+8x=7x-16

We move all terms to the left:

x+8x-(7x-16)=0

We add all the numbers together, and all the variables

9x-(7x-16)=0

We get rid of parentheses

9x-7x+16=0

We add all the numbers together, and all the variables

2x+16=0

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

2x=-16

x=-16/2

x=-8

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