15=10-x/0.4

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Solution for 15=10-x/0.4 equation: 



15=10-x/0.4

We move all terms to the left:

15-(10-x/0.4)=0

We add all the numbers together, and all the variables

-(-x/0.4+10)+15=0

We get rid of parentheses

x/0.4-10+15=0

We multiply all the terms by the denominator


x-10*0.4+15*0.4=0

We add all the numbers together, and all the variables

x+2=0

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

x=-2

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