80-3.5=70-3x

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Solution for 80-3.5=70-3x equation: 



80-3.5=70-3x

We move all terms to the left:

80-3.5-(70-3x)=0

We add all the numbers together, and all the variables

-(-3x+70)+80-3.5=0

We add all the numbers together, and all the variables

-(-3x+70)+76.5=0

We get rid of parentheses

3x-70+76.5=0

We add all the numbers together, and all the variables

3x+6.5=0

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

3x=-6.5

x=-6.5/3

x=-2+0.5/3

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