Q9 of 107 Page 104

If k + 7 = 16, then the value of 8k – 72 is

Given equation is k + 7 = 16


On transposing 7 to RHS, we get


⇒ k = 16 – 7 = 9


Put the value of k in the equation (8k – 72), we get


⇒ 8(9) – 72


⇒ 72 – 72 = 0

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