V K Raman and S N Sharma Solutions for Exercise 2: CONCEPT REVISION TEST

Transposition is used for solving inequations also.

When every term of an inequation changes sign then the inequality changes direction.

If $x$ is an even number, then the next lower even number is _____.

When $1-2x=-9, x=$_____

If $-x>-3, x\in \mathrm{N}$, and $x=\left\{a, b\right\}$, then $a+b=$ _____.

$\frac{x}{2}<3, x\in \mathrm{W}$, then $x=\{$_____$\}$ (Write the solutions in ascending order, separated by a comma).

If $x=-3$ then $2x-5=$_____

$2x+5>3x$ and $x\in \mathrm{N}$, if $x=\left\{a,b,c,d\right\}$, then $a+b+c+d=$_____