EstiBesti EstiBesti

22-02-2015
Mathematics

Answered

Daniel is three years older than twice his brother's age. Daniel is 17. Fill in the box with the expression that represents the age of Daniel's brother. Let b represent Daniel's brother's age.

Answer :

mathlovingguy mathlovingguy

22-02-2015

Daniel's age is X
Daniel's brother age is Y

X = 3 + ( 2Y )

Y = ( X - 3 ) / 2

In case of Daniel is 17

then his brother's age is = ( 17 - 3 ) / 2 = 7 years

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