3-x=10.5

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Solution for 3-x=10.5 equation: 



3-x=10.5

We move all terms to the left:

3-x-(10.5)=0

We add all the numbers together, and all the variables

-1x-7.5=0

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

-x=7.5

x=7.5/-1

x=-7+0.5/1

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