15-3.5*x=4.5

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Solution for 15-3.5*x=4.5 equation: 



15-3.5x=4.5

We move all terms to the left:

15-3.5x-(4.5)=0

We add all the numbers together, and all the variables

-3.5x+10.5=0

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

-3.5x=-10.5

x=-10.5/-3.5

x=+3

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