Question

If x=3, find the value
(a) x-7
(b) 3-x

Answer 1

Answer:

a = -4 and b = 0

Step-by-step explanation:

CASE 1

x = 3 (Given)

Putting value in a

= x - 7 = 3 -7 = -4

CASE 2

3 - x

Putting Value x = 3

3 - x = 3 - 3 = 0

Answer 2

Answer:

(a) x - 7 = - 4

(b) 3 - x = 0

Step-by-step explanation:

$x = 3 \: \: ......(given) \\ a)x - 7 \\ x - 7 \\ = 3 - 7 \\ = - 4 \\ b)3 - x \\ 3 - x \\ = 3 - 3 \\ 0$

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