alyssa0711
alyssa0711
13-09-2017
Mathematics
contestada
Can someone explain these please?
Respuesta :
kphung76127
kphung76127
13-09-2017
5.
-4=r/20-5
First add 5 to both sides
1=r/20
Then multiply both sides by 20
20=r
Final answer: r=20
7.
(v+9)/3=8
First multiply both sides by 3
v+9= 24
Subtract 9 from both sides
v=15
Final answer: v=15
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