8+9x=-x+4

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



8+9x=-x+4

We move all terms to the left:

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

We add all the numbers together, and all the variables

9x-(-1x+4)+8=0

We get rid of parentheses

9x+1x-4+8=0

We add all the numbers together, and all the variables

10x+4=0

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

10x=-4

x=-4/10

x=-2/5

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