Using the principle of change of subject on the equation given, the value of d which makes the expression true is 9
Given the expression :
2/9 = d/27
Cross multiply
9 × d = 2 × 27
9d = 54
Divide bith sides by 9
9d/9 = 54/9
d = 6
Therefore, the value of d which makes the equation true is 9
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