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4*8+2k=-20
We simplify the equation to the form, which is simple to understand
4*8+2k=-20
Simplifying:
+32+2k=-20
We move all terms containing k to the left and all other terms to the right.
+2k=-20-32
We simplify left and right side of the equation.
+2k=-52
We divide both sides of the equation by 2 to get k.
k=-26
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