neha is 5 years younger to karishma. Twelve year ago, karishma was twice as old as neha convert it into algebraic equation.
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Step-by-step explanation:
let present age of karishma is = x
and Present age of neha is = y
so....
x - y = 5....... equation (1 )
before 12 years ago age of karishma is = x- 12
before 12 years ago age of neha is = y -12
so as per 2nd statement. ...
x- 12 = 2 ( y -12 )...... .. equation (2 )
or, x-12 = 2y - 24
or, x - 2y = 12- 24
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