Question

Question 13

The equation having -3 as the solution is

(a) x + 3 = 1

(b) 8 + 2x = 3

(c) 10 + 3x = 1

(d) 2x + 1 = 3

Answer 1

Let us solve the equations:

(a) Given equation is x + 3 = 1
$\Rightarrow x=1-3\Rightarrow x=-2$

(b) Given equation is 8 + 2x = 3
$\Rightarrow 2x=3-8\Rightarrow 2x=-5\Rightarrow x=-\frac{5}{2}$

(c) Given equation is 10 + 3x = 1
$\Rightarrow 3x=1-10\Rightarrow 3x=-9\Rightarrow x=-3$

Now, we don't have to solve next equation as we get the answer.