Question

Solve:
$\left(i\right)$ $2x+5=17$
(2 marks)

Answer 1

Given,

$2x+5=17$

Now to find value of $x$ by hit and trial method

$x$ (1 mark)	2$x$ + 5 (1 mark)	Result (1 mark)	Is it 17 ? Yes/No
1	2(1) + 5	7	No
2	2(2) + 5	9	No
3	2(3) + 5	11	No
4	2(4) + 5	13	No
5	2(5) + 5	15	No
6	2(6) + 5	17	Yes

Hence, the value $x$ is $6$. (2 marks)