Question

If k + 9 = 16, then the value of 8k – 56 is​

Answer 1

Step-by-step explanation:

Correct option is A)

Step 1: Solve the given equation for k

Given that, k+7=16

⇒k=16−7

⇒k=9….(i)

Step 2: Substitute the value of k in the given expression

Given expression is, 8k−72

⇒8×9−72 (From Eq. (i))

⇒0

Hence, the correct option is (a).

Answer 2

Answer:

Hello

Step-by-step explanation:

Solve the given equation for k

Given that, k+9=16

⇒k=16−9

⇒k=7

Step 2: Substitute the value of k in the given expression

Given expression is, 8k−56

⇒8×7-56 (From Eq. (i))

⇒56-56

⇒0

Have a good day