8x+9x=70-x

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Solution for 8x+9x=70-x equation: 



8x+9x=70-x

We move all terms to the left:

8x+9x-(70-x)=0

We add all the numbers together, and all the variables

8x+9x-(-1x+70)=0

We add all the numbers together, and all the variables

17x-(-1x+70)=0

We get rid of parentheses

17x+1x-70=0

We add all the numbers together, and all the variables

18x-70=0

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

18x=70

x=70/18

x=3+8/9

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