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-15=-8+2(k-6)
We simplify the equation to the form, which is simple to understand
-15=-8+2(k-6)
Reorder the terms in parentheses
-15=-8+(+2k-12)
Remove unnecessary parentheses
-15=-8+2k-12
We move all terms containing k to the left and all other terms to the right.
-2k=-8-12+15
We simplify left and right side of the equation.
-2k=-5
We divide both sides of the equation by -02 to get k.
k=2.5
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