Question

Solve for k.

8k + 2m = 3m + k

k = 70m
k = 7m
k = k equals StartFraction 7 Over m EndFraction.
k = k equals StartFraction m Over 7 EndFraction.

Answer 1

D. k=M/7 is the answer

Answer 2

`\large\boxed{k=(m)/(7)}`

Explanation:

`8k+2m=3m+k\qquad\text{subtract}\ 2m\ \texy{from both sides}\\\\8k+2m-2m=3m-2m+k\\\\8k=m+k\qquad\text{subtract}\ k\ \text{from both sides}\\\\8k-k=m+k-k\\\\7k=m\qquad\text{divide both sides by 7}\\\\(7k)/(7)=(m)/(7)\\\\k=(m)/(7)`