1=0.7x-0.8x-4

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Solution for 1=0.7x-0.8x-4 equation: 



1=0.7x-0.8x-4

We move all terms to the left:

1-(0.7x-0.8x-4)=0

We add all the numbers together, and all the variables

-(-0.1x-4)+1=0

We get rid of parentheses

0.1x+4+1=0

We add all the numbers together, and all the variables

0.1x+5=0

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

0.1x=-5

x=-5/0.1

x=-50

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