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19.2=3.4x+2.2
We move all terms to the left:
19.2-(3.4x+2.2)=0
We get rid of parentheses
-3.4x-2.2+19.2=0
We add all the numbers together, and all the variables
-3.4x+17=0
We move all terms containing x to the left, all other terms to the right
-3.4x=-17
x=-17/-3.4
x=+5
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