Question

a) The equation 8x + 72 = 16 can also be written as:
(i) 8x + 72 = 0 (ii) 8x = 88
(iii) x + 9 = 2 (iv) x+8 = 4​

Answer 1

Answer:

3) x+9=2

Step-by-step explanation:

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Answer 2

The equation 8x+72=16 can be written as x+9=2.

Option (iii) is correct.

Given:

• Equation 8x + 72 = 16.

To find:

• The equation can also be written as:
• (i) 8x + 72 = 0
• (ii) 8x = 88
• (iii) x + 9 = 2
• (iv) x+8 = 4

Solution:

Step 1:

Find out any common factors in all terms.

$8x + 8 \times 9 = 8 \times 2$

or

$8(x + 9) = 8 \times 2$

Step 2:

Cancel 8 from both sides.

$x + 9 = 2$

Thus,

The equation 8x+72=16 can be written as x+9=2.

Option (iii) is correct.

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