what no. must be substracted from each of 15,19,21 and 27 to make them proportional
can anyone please help me by solving the sum steps by steps i am stuck now please help me by solving the sum
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Answer:
405-15x-27x+x^2 = 399-21x-19x+x^2
-42x+40x = 399-405
-42x = -6
x = 3.
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