Question

Question 7

The solution of the equation 3x + 7 = - 20 is

(a) $\frac{17}{7}$

(b) -9

(c) 9

(d) $\frac{13}{3}$

Answer 1

Given equation is 3x + 7 = - 20
$\Rightarrow 3x=-20-7\Rightarrow 3x=-27$
On dividing the above equation by 3, we get
x = - 9
Hence, the solution of the given equation is -9.