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19+1.90x=11.20+2.50x
We move all terms to the left:
19+1.90x-(11.20+2.50x)=0
We add all the numbers together, and all the variables
1.90x-(2.50x+11.2)+19=0
We get rid of parentheses
1.90x-2.50x-11.2+19=0
We add all the numbers together, and all the variables
-0.6x+7.8=0
We move all terms containing x to the left, all other terms to the right
-0.6x=-7.8
x=-7.8/-0.6
x=+13
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