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2k+5=1.8
We simplify the equation to the form, which is simple to understand
2k+5=1.8
We move all terms containing k to the left and all other terms to the right.
+2k=+1.8-5
We simplify left and right side of the equation.
+2k=-3.2
We divide both sides of the equation by 2 to get k.
k=-1.6
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