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$(a)$. Construct 3 equations starting with $x=2$
$(b)$ Construct 3 equations starting with $x=-2$
To do:
We have to
(a) Construct 3 equations starting with $x=2$
(b) Construct 3 equations starting with $x=-2$
Solution:
(a) Equations starting with $x=2$
(i) $x=2$
Multiplying both sides by $10$,
$x \times 10=2\times10$
$10x=20$
Adding $2$ to both sides,
$\Rightarrow 10x+2=20+2$
$\Rightarrow 10x+2=22$
(ii) $x=2$
Multiplying both sides by 5,
$x \times5=2\times5$
$5x=10$
Subtracting 3 from both sides,
$\Rightarrow 5x-3=10-3$
$\Rightarrow 5x-3=7$
(iii) $x=2$
Multiplying both sides by 2,
$x \times2=2\times2$
$2x=4$
Subtracting 3 from both sides,
$\Rightarrow 2x-3=4-3$
$\Rightarrow 2x-3=1$
(b) 3 equations starting with $x=-2$
(i) $x=-2$
Multiplying both sides by 3,
$x \times3=-2\times3$
$3x=-6$
Adding 1 to both the sides,
$\Rightarrow 3x+1=-6+1$
$\Rightarrow 3x+1=-5$
(ii) $x=-2$
Multiplying both sides by 3,
$x \times3=-2\times3$
$3x=-6$
Adding 7 to both sides we get.
$\Rightarrow 3x+7=-6+7$
Or $3x+7=1$
(iii) $x=-2$
Multiplying both sides by 3,
$x \times3=-2\times3$
$3x=-6$
Adding 10 to both sides, we get
$\Rightarrow 3x+10=-6 +10$
$\Rightarrow 3x+10=4$