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0,5x-3=18
We simplify the equation to the form, which is simple to understand
0,5x-3=18
We move all terms containing x to the left and all other terms to the right.
+ 0.5x=+18+3
We simplify left and right side of the equation.
+ 0.5x=+21
We divide both sides of the equation by 0.5 to get x.
x=42
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