Answer: k=3/5
Explanation:
distributive property: a(b+c)=ab+ac
divide by 7 both sides of an equation.
7(5k-4)/7=-7/7
simplify by equation.
5k-4=-1
add 4 both sides of an equation.
5k-4+4=-1+4
simplify.
5k=3
divide 5 both sides of an equation.
5k/5=3/5
simplify.
k=3/5
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