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(3,9-x)/4=0,7
We simplify the equation to the form, which is simple to understand
(3,9-x)/4=0,7
Reorder the terms in parentheses
( + 0.975-0.25x)=0,7
Remove unnecessary parentheses
+ 0.975-0.25x=0,7
We move all terms containing x to the left and all other terms to the right.
-0.25x=0.7-0.975
We simplify left and right side of the equation.
-0.25x=-0.275
We divide both sides of the equation by -0.25 to get x.
x=1.1
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