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Solve the proportion for k
k+7 = 4k+15
29= 21


Sagot :

Answer:

k+7

k-7

or k+7/k-7

Step-by-step explanation:

Answer:

k=3/8

Step-by-step explanation:

k+7 = 4k+15

-k       -k

-------------------

7=3k +15

-15    -15

------------

8=3k

----------

3

k=3/8