Q

# Solve the following equations: (a) 10p = 100

4. Solve the following equations:

(a) 10p = 100

(b) 10p + 10 = 100

(c) p /4 = 5

(d) – p/3 = 5

(e) 3 p/4 = 6

(f) 3s = –9

(g) 3s + 12 = 0

(h) 3s = 0

(i) 2q = 6

(j) 2q – 6 = 0

(k) 2q + 6 = 0

(l) 2q + 6 = 12

Views

(a) Divide both sides by 10, we get :

$p\ =\ 10$

(b) Transposing 10 to the RHS, we get :

$10p\ =\ 100\ -\ 10\ =\ 90$

Now, dividing both sides by 10 gives  :       $p\ =\ 9$

(c) Multiplying both sides by 4, we have :

$p\ =\ 20$

(d) Multiplying both sides by - 3 , we have  :

$p\ =\ 15$

(e) Multiplying both sides by $\frac{4}{3}$, we have :

$p\ =\ 8$

(f) Dividing both sides by 3, we have :

$s\ =\ -3$

(g)  Transposing 12 to the RHS and then dividing both sides by 3, we have :

$s\ =\ -4$

(h) Dividing both sides by 3, we get :

$s\ =\ 0$

(i) Dividing both sides by 2, we get :

$q\ =\ 3$

(j)  Transposing - 6 to the RHS and then dividing both sides by 2, we get  :

$q\ =\ 3$

(k) Transposing 6 to the RHS and then dividing both sides by 2, we get  :

$q\ =\ -\ 3$

(l) Transposing  6 to the RHS and then dividing both sides by 2, we get  :

$q\ =\ 3$

Exams
Articles
Questions