How many years old is a person if her age now is equal to her age in 3 years' time x 3, less 3 times her age 3 years ago.
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Plz explain ur question properly in the comment
jbkarch:
Sorry for the mistake
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Answer:
How many years old is a person if her age now is equal to her age in 3 years' time x 3, less 3 times her age 3 years ago.
Step-by-step explanation:
x = 3(x+3) - 3(x-3)
solving for x
x = 3x+9 - 3x + 9
x = 18, her age NOW
CHECKING our Answer***
18 = 3*21 - 3* 15 = 63 - 45
this is your answer....
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