After 16 years

After 16 years, Dana will be five times older than she was four years ago. After how many years will Dana celebrate her 16th birthday?

Final Answer:

x =  7

Step-by-step explanation:

r+16=5(r4) x=16r  r+16=5 (r4)  4r=36 r+x=16  Row241 Row1Row2 x=7  r=436=9  r=9



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