Solve kx- 4 = 9 for x.
ОА. x= 13 – к
Ов. х=
Ос. х- 13
Op. x = 13k
1 answer:
kx-4=9
Move -4 to the other side. Sign changes from -4 to +4
kx-4+4=9+4
kx=13
Divide by k for kx and 13
Cross out k and k = 1.
x=13/k
Answer: x=13/k
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