Answer:
K=27
Step-by-step explanation:
the answer is 27
Answer:
5r-1+3r=7r+1
5r+3r-7r=1+1
r=2
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Step-by-step explanation:
Answer:
20+4x
Step-by-step explanation:
4*5+4*x=
20+4x.
*Distributive law upon addition.*
First change it into exponential form that apply any derivation rules needed