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12,5+2,5*x=1,3+12,9*x
We simplify the equation to the form, which is simple to understand
12,5+2,5*x=1,3+12,9*x
We move all terms containing x to the left and all other terms to the right.
+2.5x-12.9x=+1.3-12.5
We simplify left and right side of the equation.
-10.4x=-11.2
We divide both sides of the equation by -10.4 to get x.
x=1.0769230769231
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