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5k-40=-7+1k
We simplify the equation to the form, which is simple to understand
5k-40=-7+1k
We move all terms containing k to the left and all other terms to the right.
+5k-1k=-7+40
We simplify left and right side of the equation.
+4k=+33
We divide both sides of the equation by 4 to get k.
k=8.25
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