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12,5 + 0.1x+3 + 0.2x=28
We simplify the equation to the form, which is simple to understand
12,5 + 0.1x+3 + 0.2x=28
We move all terms containing x to the left and all other terms to the right.
+ 0.1x + 0.2x=+28-12.5-3
We simplify left and right side of the equation.
+ 0.3x=+12.5
We divide both sides of the equation by 0.3 to get x.
x=41.6666666667
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