Question

If x = 3 , find the value of the following
1) x + 5
2) 2x -3
3) x - 7
4) x/3 - 1

Answer 1

Answer:

x +5 = 3+5 =8

2x -3 = 6-3 = 3

x -7 = 3-7 =-4

x/3-1= 3/3 -1 = 1 -1 = 0

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Answer 2

Answer:

x = 3

$1. \: \: x + 5$

$\: \: 3 + 5$

$\: \: 8$

Ans. 8

$2. \: \: 2x - 3$

$\: \: (2 \times 3) - 3$

$\: \: 6 - 3$

$\: \: 3$

Ans. 3

$3. \: \: x - 7$

$\: \: 3 - 7$

$\: \: - 4$

Ans. -4

4. x/3 - 1

3/3 - 1

1 - 1

0

Ans. 0

Hope it helps.