find the number whose double is 45 greater than its half
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Answered by
4
2x= = x/2 + 45
==> 2x - x/2 = 45
<==> (3x)/2 = 45
==> 3x = 90
==> x = 90/3 = 30, the unknown number.
==> 2x - x/2 = 45
<==> (3x)/2 = 45
==> 3x = 90
==> x = 90/3 = 30, the unknown number.
Answered by
2
its 30..................
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