Question

Please help me to solve this question

Answer 1

Answer:

As given, p = 2q

therefore 3p - q = 15

3(2q) - q = 15

6q - q = 15

5q = 15

q = 15/5

q = 3

3p - q = 15

3p - 3 = 15

3p = 18

p = 18/3

p = 6

Answer 2

Answer:

i) x = - 1

ii) p = 6

Step by step explanation :

1.

7 (x + 2) = 7

7x + 14 = 7

7x = 7 - 14

7x = - 7

x = - 1

2.

3p - q = 15 and p = 2q

q = p/2

Now

3p - p / 2 = 15

6p - p = 30

5p = 30

p = 30 /5

p = 6